Yes, and as the grandparent comment pointed out, denying or questioning the existence of the bias is by itself treated as evidence of it. That's the vicious circle you can't win against - a non-falsifiable dogma.
Please see my sibling comment to yours. I don’t generally see this treated as a “dogma,” nor do I think it should be. It’s an important part of self-reflection.
Saying “I’m not a racist” may be treated as having failed to do that self-reflection in some camps, because usually, for most people, things are more nuanced. So a sign of having done that reflection is often an unwillingness to make such categorical statements about something as complex as our own internal motivations and feelings. I’m not sure whether or not that’s fair, but I would imagine that’s where some of that comes from.
I think this is accidental motte and bailey arguing. People are being fired/cancelled for "being racist". This is not the same "being racist" as you're now saying everyone is to some extent.
Calling two different things the same thing is always a problem, and weaponisable. Which is why people do it.
