I’m not sure I agree with that either. In my experience it depends entirely on the willingness of the people in the relationship to listen to one another and their ability to understand that disagreements about political issues, current affairs, religions, etc, don’t actually have to define them as people and, therefore, their entire relationship. People from opposing sides of politics and life actually have a lot in common because the human experience is a universally shared one. It’s all about breaking through the artificial barriers that would keep us separated online and finding those commonalities.