"crazy left ideas" is subjective.
equality of outcome isn't a "bad theory" because economic stratification is sufficient for sociopolitical stratification. With the formation of economic classes comes an imbalance in political power. The USA for example permits unlimited money donations to political parties under the pretext of "Freedom of Speech" but that has led to an enormous increase in wealth inequality.
Whereas a similar neighbouring country, Canada, limits political donations. Under the Harper administration some years back (almost a decade now I guess?), Harper's PC government raised political donation limits and between that and redrawing of voting districts, the Conservative power has managed to edge in more votes and more influence (leading, in the end, directly to loss of government-funded scientific endeavours, ecological control organizations, an increase in climate change deniers, etc.)
And overall, Canada scores better in virtually all quality of life tests, is more free, and has less economic stratification.
Arguing over whether or not racial superiority isn't even an argument -- it's stupidity and ignorance and worth less than cow dung on top of being repeatedly debunked and demonstrably rooted in capitalists/wealthy elites trying to make other humans look bad to try and justify the exploitation of their labour.
Principally, classic conservatism is based on the idea of preserving the quality of life for future generations to enjoy, providing social stability.
Whereas, principally, the left (including communism, anarchism, and similar sub-models of the left) is based on the idea of providing increased quality of life for EVERYONE, the belief in the essential equality of ALL people, social mobility, democracy, everyone having value, etc. All the good stuff.
Whereas present day surge in right-wing, alt-right, and far right activity is largely grounded in reactionary behaviours rooted in traditionalism, engineered ignorance (see: right parties defunding education, defunding ecological and climate change initiatives), and upholding of existing social hierarchies to the benefit of the established wealthy.
The "problem with the left" doesn't exist insofar as any singular cause. Virtually everyone wants to be fed, sheltered, and have a say in things -- principles that the left strive for and that the classic (and I think noble) right and conservative causes guard and maintain to provide the future generations with those societal improvements the left provide.
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Ex. a "controversial" talking point the right likes to deride are transgender people. Trans people are the new underdog.
Except that trans people as a whole largely aren't particularly wealthy and are few and far between and are generally not in positions of political or social power. (Note: outliers exist.)
And part of the reason why LGBTQ rights has been making so many strides is because people principally LIKE the idea of being whoever they want to be, of being more than simply the flesh they are born with, and the social caste they are born within, and WANT to be able to love whoever they want to (compare with old fairy tales and medieval stories of old kings refusing to allow their princes, princesses, or whatever to marry whoever they want, like peasants, or people of the same-sex under the pretense that they will not reproduce and provide a suitable heir to help maintain the monarchist, inherited-wealth-and-power social order).
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So honestly, I have no idea what you mean by "crazy left ideas."
Is universal basic income a "crazy idea?" If so, why then are so many jurisdictions considering it seriously?
Is people feeling like they are not the gender they are born with a "crazy left idea"? If so, why then are so many people sympathetic to the idea of being born into a body/situation that they have no control over?
Is same-sex marriage a "crazy left idea?" (And in some jurisdictions, still is..... unfortunately.) If so, when then are so many people sympathetic to the idea of being able to love and romance with anyone they want (to have the freedom to love whoever they wish without intrusion from others?)
The USA (and to a slightly lesser extent, Canada) has a political system that lends itself to being a two-party hatefuck of control between exceedingly rich people (like owner of Nestle-level) at the expense of literally everyone else, creating the illusion of dichotomy between the left and right in modern politics. FYI, having lots of money (such as a political party with unlimited donations...) permits drastic levels of increase in propaganda and direct success in current Western society.
If there is a particular and specific idea one would like to address and explore, it's best to do that and simply synthesize information on one's own. Personally, I cast a wide brush against the right because of the trend for appealing to reactionaries and bringing ruin, war, economic crisis, and shitty excuses to treat diverse humans in a shitty way, to huge swaths of people.
okay so what else
-COINTELPRO happened and the US government has an explicit interest in controlling its people
-The USA performed unethical medical experiments on black people
-Canada is still struggling with its history of colonialism (to say nothing of how things are in the US...)
-The Red Scare was propaganda
-Why does the USA keep destabilizing entire regions, causing mass immigration that working class people have a hard time dealing with because of existing economical conditions inducing artificial scarcity
-capitalism is shit
-eat the rich
-only the wealthy benefit from racism
thanks for coming to my ted talk.
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EDIT:
QUOTE(EsotericSatire @ Jun 27 2019, 21:33)

Equality of Outcome ignores the way the life has worked for the past billion years and that resources are limited.
no
equality of outcome, or close to it, is the only way to guarantee that no one is forced to go hungry, go without shelter, die from exposure, guarantee decentralization (and abuse) of power, and more.
but people are brainwashed into thinking that going hungry and dying out in the cold when 20% of a city's housing is being played with like toys by speculative investors (again -- very wealthy people who can own lots of land and property) is better than paying a bit more in taxes.
thank god i live in Canada. i love my country's sweet sweet socialized, one-payer healthcare system that guarantees i won't have to live in poverty for the rest of my life if i get the flu and can't show up to work one day, and still lets me afford video games and paid porn
(not saying that Canada is the best -- it's not, and the Canadian Border Service Agency can fuck right off with using private genetics data banks to deport refugees, and there's a huge problem with racism and structural oppression against the First Nations peeps)
oh also weed
and the drug war was a lie rooted in racism and exploitation
This post has been edited by Tripwire__: Jul 9 2019, 22:39