No, they have not been taught to think.
They know that spewing this “white supremist” stuff has worked and they will just keep spewing it even when it doesn’t fit.
They ARE idiots!
I worked for years with flaming liberals at the union. Even though I was the only conservative working there, I got along with all and actually people would come ask me questions and I got points across.
When someone would make an idiotic statement, I would innocently ask how that works, etc. They would trip up trying to make sense.