I don't know Karnejj, since I haven't seen anyone called either a libtard or conservaderp in this thread. Those are both internet slang insults that I've noticed partisans slinging at each other all the time.
'Partisan', on the other hand, is a specific word with a specific meaning in the English language.
Partisan
–noun 1. an adherent or supporter of a person, group, party, or cause, especially a person who shows a biased, emotional allegiance.
Try all you want to equivocate partisan to some sort of internet debate slang insults. We both know you're wrong.