(before getting people triggered, I don't agree with the guy and did vote for Harris. Can't wait until the maga cult dies off.)
I mean, there are a small group of people on the left being racist/sexist in the open making every part of "white cis straight male" as pejorative as possible. Calling to even exterminate them on twitter. You know, the kind of people that don't want to end oppression but instead wants to switch roles. They want revenge, not peace. Of course foreign bots too, to sow discord. Right picks up that and amplifies it to seem the entire left thinks and acts like that. Worse yet, this small group tends to go and yell at regular, common sense people who agree on equality instead of going to yell at true racists/misogynists/homophobes because that'd be dangerous. A regular person walks in eggshells because saying something isn't sanctioned by these people can get you fired, since the companies don't want the PR disaster. Meanwhile, people in the middle of the country losing their jobs due to factories closing or not making enough to survive seeing people discussing bathrooms for minorities (it is important but let's not forget priorities). It's easy to see how that would push people to the other side, because frankly you don't have options. Of course Trump is another league, extremist, criminal (basically mocking criminal justice by dodging everything while committing crimes in the open), likely compromised by foreign countries, and endorsing the worst in the right. But hey, no choices. I'd love to see maga/republicans split in two parties and democrats and progressists in another 2. Give people more fine grained choices.
Voting republican makes you racist/sexist? Then voting democrat makes you a genocide lover? Or supporting getting oral sex from employees? Nobody ever votes for one side because it's perceived the less bad option? I'd recommend going out of your bubble and talk to other people, you'll find a lot of them are nice on both sides and you disagree in way less ways than the propaganda wants you to believe.