Look, you have zero iQ in your argument.
First of all, you have completely misunderstood the idea of collectivism and individualism, today 90% of the proletariats lives in collectivism society, as long as you are a worker, you have to work in a company. Everything you do, you contribute to the company, you listen to your boss for their instructions, you follow the company's rules and regulations, it makes no difference if the company is replaced by a commune or a state. If you want to sustain a good living, you cannot have total individualism. Secondly, not every leftist support collectivism just like not every rightist support individualism. For instance, NaZi, Fascism are the extreme collectivism ideology while on the left side there is anarchism (anarcho-syndicalism, anarcho-communism), that wants to totally abolish the entire society system, people only voluntarily form their own commune or syndical (I'm not an anarchist so I'm not 100% sure of how they are going to plan the society).
Racism, Sexism are all the side products of capitalism and religion, in which religion is a good tool for ruling class to control their people and capitalists have used it well until today. For instance gay-marriage or abortion, it makes no sense for the government to ban these things, those are the individual freedom that does not hurt anyone else, CCCP was the first country that legalize gay-marriage btw. However, it is crucial for the ruling class to bury the seed of religion in the proletariats' head, telling them that you must believe in that weird man with funny ring on his head, though ofc God does not exist but someone needs to punish those who violets the religion law, then it comes the states. Religion will be abolished when people enters socialism because it's no longer needed for the ruling class by the time, with abolishing religion it makes no reason for people to be racist or sexist.