There are times and places to have political discussions - the fact that I do not engage with my mom on political topics over Thanksgiving turkey does not mean I am not interested in politics, it means I am not interested in politics in that particular context.
Mostly because I know that the discussion will end in anger, hurt feelings, and not a single changed mind. It has happened enough on this board that people, myself included, start getting very flag-happy when they get a whiff of partisanship in the air.
I especially do not appreciate the implication that not wanting to have the discussion "here" is a political statement of anything other than wanting to avoid a headache. I must point out that insisting that X be talked about when someone has expressed disinterest in the topic is hard to interpret in any way other than hostile disregard.