I'm really sorry for all the people that did try to stop this, and for the people that couldn't fit whatever reason. But the idiots that caused it? I really hope they suffer enough to learn at least a bit.
It's like everyone forgot COVID-19. The administration's response and almost daily scandal during that barely moved the political needle, and people are even more siloed in now... I honestly don't know what it would take.
They need a concept of prejudice that's simplistic (as in singular) in nature with with a tangible body of people or person/s to blame. It would also need to tie into beliefs that they heard or taught while growing up.
Trying to get them to understand (put two and two together) the different facets of a conspiracy or something that is rigged tends to lose them when there is more than one thing at fault.
As someone who sat "next" to a child clearly coughing mucus at the movie theater:
Yes, everyone forgot about COVID (and masking). Can't wait to be sick in a few days!