As a progressive liberal who grew up and spent many adult years in a a "deep red" religious state, I received similar treatment when people discovered I was a damn liberal atheist. I was called communist, lazy, and entitled for supporting social programs.

This isn't a thing only liberals do to conservatives, it goes the the other way when conservatives are in the majority. I experienced it first hand.

Most people treat politics like sports teams, you're born a republican/democrat the same way you're born a fan of the local football team. So they automatically divide the world into the "in-group" and "out-group" and just blindly rage against the other "team" like the home crowd boos the opposing team.

There is a reason the founders were fearful of tyranny of the majority.