I don't think the left knows what these words mean. They're openly arguing for racially segregated dorms. For giving positions not based on ability but on skin color. For the dissolution of the police force. For the assassination of the democratically elected president. Sally Boynton Brown, running for DNC chair, campaigned that her job was to shut white people up - she got applause.
I think your opinions on liberals are founded more on alt-right outrage videos than on reality. Yes, there are people who believe those things, but it's literally just as easy to pull up anecdotes about crazy things that conservatives/libertarians/greens/etc believe. The vast majority of liberals don't actually believe those things, and the people who do are confined to the ultra-liberal SJW circles that normal people can't stand.
There are dozens of millions of liberals in this country, and it's statistically impossible that there aren't radicals in a group that large. If you're looking to confirm your biases against them, you will
always be able to find anecdotes that support your beliefs.
Also, I looked into the stats on affirmative action, and a Gallup poll shows that 32% of white conservatives and 50% of white moderates support it. I don't think the evidence suggests that support for affirmative action is a part of the liberal caricature. If we want to treat it as a problem in society, it's a bipartisan issue.
http://www.gallup.com/poll/18091/race-ideology-support-affirmative-action.aspxSally Boynton Brown, running for DNC chair, campaigned that her job was to shut white people up - she got applause.
That's an unfortunate way to phrase it, but notice that both Brown and the crowd are white. That's the difference between racism against a group in power, and racism against a group that's not. When white people say something tribal against other white people, it's in bad taste. When white people say something tribal against minorities, we elect them president and set bills in motion to appropriate $25b for a wall.