I don’t have any liberal friends, and I have disowned my leftist-communist in-laws. Nothing I can say will change their minds, and I don’t particularly care what they think.
I refuse to visit them, and will be conveniently unavailable when / if they visit us, lest there be yelling, screaming, and other unpleasantness.
I have family members like your in-laws.
A SIL, cousin and her dad.
I’m pretty much the same as you.