The other regular genre, given the time. They're either preachy (always preaching at liberals) about how you should understand your conservative relatives and family/friendship is just too important to sacrifice over a little thing like politics, or condescending, about how you can convince them of the error of their ways.
My advice: if you can't get through a meal without people talking about contentious politics, either because you're the asshole or they are, don't go. Easy.
