Well, we are a community as a whole, so I see no problem in discussing about politics or problems in real life as a whole. And yes, Donald Trump is a comedy, but the future is unpredictable.
Honestly, this election has been entertaining and many people who never cared about politics are interested now. If there's a chance that more people educate themselves and make an informed vote because the election is so crazy, then it's a good thing overall. I get that non-Americans don't care about it, but you probably should. American decisions tend to affect the whole world sometimes, and who our leader is will affect global politics for some time to come.