I disagree with this a bit. For all the racists I know, reason and argument will not work on them. Most don't even believe they are being racist.
There is a lack of critical thought because we haven't had to for awhile. The media would do that. They would do the thinking and people would follow. Now with Trump and other right-wing douches say the media lies so now people have to think for themselves. But many (read: all) of Trump's followers are dumb and can't think for themself.
For example: a weird, religious, right-wing "news" channel on Facebook called FlashPoint had a program where they went through all the "evidence" that the riot on the capitol was actually BLM and Antifa. This has been disproven so many times it is uncountable.
But, one of the evidences they had was an article by NPR that was time-stamped 9:33am and the title was something about how there was a riot at the capitol. These right wing crazy people looked at that and thought, "wow NPR knew there would be a riot before it happened....DEEP STATE!" (The deep state is a stupid conspiracy theory here where people think the federal government is conspiring against the will of the American people) BUT, in reality the article was posted before the riot and was about the rally that was happening before. Then a fucking riot happened so they re-wrote the article and changed the headline, which kept the original timestamp.
My point is this: Trump people aren't looking for reason and answers. They are looking for their own answers that fit in their fucked up world-view.