[claytongulick]

I feel like your comment supports the parent's point.

Lack of tolerance is the issue.

Which is ironic, given that traditionally the left has been known as being much more tolerant than the right.

I don't see that anymore, online or with the people I know personally.

My family has split over it. My brother refuses to ever speak to my father again because he believes my father voted for Trump.

The excuses I hear are similar to your comment, but mostly boil down to:

1) take a wedge issue

2) build a strawman around it and a dramatic case that doesn't reflect reality

3) somehow make it personal and claim victimhood

4) use that victim status to demonize the "attacker"