No South Park should not do any more episodes....ever. About anything.
WTF is wrong with you? You like Family Guy but don't like South Park? You have the worst taste in the world.
Family Guy is a hysterical show with a strong progressive message while South Park is just mind-numbing unfunny, right-wing filth. Pretty simple.
I stopped watching FG after I turned 10 because I had already matured out of it. South Park has infinitely more nuance in it, and I really can't see how you see it as an incredibly partisan conservative show.
If FG is supposed to have some sort of amazing "progressive" message then I'm truly ashamed to be a part of that movement.