I don’t know, I think even in real life people get silly when discussing topics they have strong feelings about, and politics seems to be one of them fairly often.
I saw an economic's professor start an argument in a coffee shop about Bernie Sanders. And he legitimately said something about Sanders's socialism leading to firing squads.
Getting into an argument like that isn't even worth it or possible to win.
Some of them don't even know how amendments work. They think the 2nd amendment was passed down by God on stone tablets.
I've argued with a person that didn't know amendments could change other amendments. Nor did he know how amendments were voted on. But he swore the amendments were perfect when written and couldn't possibly be changed.