Pretty much this.
All this polarizing tribalism on both sides is utterly abhorrent, and while the left is more vocal, active, and visible these days, that does not absolve the assholes and morons on the right.
I'm a centrist and I don't really have a party affiliation anymore, despite being a lifelong Democrat prior to 2016. Even then, just because I abandoned the Democrats for being batshit insane doesn't mean I'm going to automatically switch sides to the Republicans. They've got their own loons as well. Even if the Religious Right is more or less dead, I'm sure a new right-wing brand of insanity will pop up once the SJW zeitgeist dies off. America is built on the pendulum effect.
Hell, the only reason why I am probably going to vote for Trump in 2020 is because I live in a swing state and he's the least horrible of many horrible candidates. I'd vote for Tulsi Gabbard if she actually had a chance against the DNC's pick, whomever that may be (probably Warren or Biden)
If I lived in a solidly red or blue state, I'd vote third party and call it a day. Besides, if Trump wins in 2020, maybe it could get the Democrat bigwigs to pull their heads out of their asses and stop listening to the SJW crowd.
Political discourse got exponentially worse when it started being seen as a sports team rivalry.
Of course, now it's gotten so bad, it's more of a gang rivalry these days.