They don't mean it that way because in their little bubble everyone thinks as they do. They have jettisoned any friends or acquaintances that don't share their views (all of them) and don't accept new ones who don't. The bubble becomes the echo chamber.
I'm sure you, as probably every other conservative on this board, would have no trouble being friends with liberals BUT for their intolerance. I don't think it's us who go around picking fights. I think at most we expect to engage in a thoughtful discussion where we defend our positions and either agree or part as friends. That's not the way for libs. It's total war--like Sherman through Georgia.