Having your own political forum might work, but nowadays, it's impossible to civilly debate on a lot of other people's forums without banning. People are too easily offended by one slightly offensive remark. I mean, it's impossible to not become a little mean in politics.
Well, some topics are actually not debatable, so they're just "Stalin Show Trials" of a sort, lol. For instance, you either think a fetus is a life or it isn't. If you don't or do, you can't be reasoned with by the other side.
Well, if you owned a political forum, people would want these sorts of topics brought up, but there's no solution to them.