Also, a pretty big part of it was they discovered that they could be racist online. So much of Boomer psychology don't really make sense until you look at it through a lense of "does this confirm my opinions on black/brown people, and can I get punished for saying them out loud?". Thats also why they like Trump so much, because despite being a queeny bitch for his entire life, he was allowed to be racist in public, and so he was a real man's man.