Sometimes, the media can fool people into trusting their enemies, and despising their friends. For example, if one believes the media, then every person supporting Trump is a racist. Now, it may be true that every racist supports Trump. Even if by chance that was true, there are still plenty of people who support him for other reasons. These might be reasons that I disagree with. Still, I know that most people who hunt and fish are good environmentalists. Thus, I am comfortable in dealing with them on that common ground.
That's common sense common ground.
I once worked as a moderator on a forum called common ground common sense. The website came about after the Kerry/Edwards campaign website shut down. I'd been a moderator on the Kerry/Edwards site and when the new site was proposed I agreed to continue as a moderator. As a moderator I had to help resolve disputes among people who had totally different world views. We had leftists, liberals, conservatives and libertarians all discussing the issues of the day. Working on that website made me realize that when you talk to people sometimes you discover that you have a lot more in common with your "enemies" on some issues than you thought. Because of that experience I can have very good conversations with some rank and file Republicans (the anti-establishment ones that Bernie can appeal to). Some of us have opened our eyes to that fact too.
Anyway, thank you once again for a great OP.