I get some twisted thoughts running through my head every now and then... Here's a piece of "metahumour" that popped into my head while doing some house cleaning (gotta entertain myself somehow - cleaning cupboards isn't exactly exciting):
The greatest redeeming quality of any <insert ideological group here /> is that they are mortal, and will thankfully die one day.
Just use your imagination!
Works for politics, programming languages, OS/platform users, browser wars, Coke/Pepsi drinkers, whatever!