Liberals don't believe this. Only Useful Idiot Leftists who call themselves Liberals because they think Democratic Socialism is Liberal. They believe this because because Progressive Racialism has absolutely been on a tear on the Left and are actively institutionalizing Racialism and Segregationism at a fairly alarming rate, so much so that they got caught by their own anti-Racialism laws enacted decades ago.

That being the case, the Left are absolutely racist, and actively more racist.

I've met white racists in real life, and they're just generic bigots. They're typically not even white supremacists, they just hate one specific group of people for one reason or another (typically a personal experience).

Now, Racialism is explicitly a Leftist Ideology. In fact, I'd say the majority of all Racialism that isn't White Racialism, is openly Leftist. However, of the White Racialists that you will find, the vast and sweeping majority openly identify with the Left. Only White Leftist subversives like White National Socialists and White Fascists argue that they are "right wing" simply because they are anti-Bolshevik.

Even if we pretend that being anti-Bolshevik is all you needed to be not a Leftist, and we pretend that the NatSocs and Fascists are right-wing, you still find that the majority of open racialists, advocating for open racial discrimination, are almost universally Leftist.

Even when it comes to Anti-Jewishness, the majority can still be found on the Left, but they tend to keep it quietly under the radar because being anti-Jewish is a major narrative that they use against the right, despite many socialists being inherently anti-Jewish from the basis of what Capitalism is defined as under Marxism. Especially when you start adding the Islamists and non-White Racialists into the picture. Then even the anti-Jewishness of the Left is barely contained.

So if a far left supporting business is caught having rampant racism or sexism their immediate reaction is how much worse conservatives must be.

This is an important thing for you to recognize. The Leftists are never talking to you, only to themselves.

Frankly, this is a basis for a lot of their prejudice. I'd say this is easiest to point out among Feminists.

Why do Feminists hate men? The Feminsits believe that the best a man can be, even the bare minimum a man should be is a Feminist. A male Feminist. A male Feminist is the bare minimum a man should be, and he's a creepy cuttle-fish style sex-crime time-bomb waiting to go off. Well, if that's the bare minimum a man can be, imagine how much more terrible a conservative man must be. Worse, an anti-Feminist man!

They don't realize that their Feminism is the problem, and that the rest of us are better than even the above average male feminist. Most men are respectable, and not creepy, weak-willed, sex-pests.

Now apply this... everyone they interact with.

• Why do Black Leftists hate White people? They think White Leftists are the best that Whites can ever be.
• Why do White Leftists sound like they are White Supremacists with a guilty conscience when talking about Blacks? They think Black Leftists are the best Blacks can ever be.
• Why poor Leftists hate the Rich? Look at Rich Leftists.
• Why do rich Leftists think that the poor need to be controlled and parented? Look at poor Leftists.

On and on and on.

They hate these abstract groups, because they hate each-other, and each-other is the best that group can ever be.