Expect the Capitalist to fight back. The Capitalists aren't just the big corporate companies but the small business owners who managed to scrape a living for themselves through the ideas of the capitalist system. These same men, who put their blood, sweat, amd tears into their business will tell anyone who thinks they can take what is theirs to go to hell and will give hell as well if their meager livelihood is threatened.

Also, the wrongs of racism and sexism are not due to an economic system but are deep rooted into the culture and mentality of a people. The only way to remove these things is not by changing the economic system but by changing the way the people think, mostly by aiming your efforts on the youngs whose minds are malleable enough to adopt these ideas and spread them to the next generation while the old generation dies off as well as the old way of thinking.