People who join grievance cults, or simply establish one themselves as needed (and it seems the need is unquenchable), would be pitiable if not for the dangerous levels of toxicity and ignorance swirling around them like an evil miasma.
The negativity radiated by those poor lost souls is a carcinogen; corrosive and destructive and all-consuming.
Maintain a prudent distance from those influence zones and remember:
It's okay to smile, even at people you don't particularly like or whose views are not your own.
If nothing else it'll prevent the two of you from appearing to be the same person wearing different clothes which happens far more often than you might think down in the darkest depths of tribalism.