Most SP shows do. Two weeks ago animal rights activists were shooting and killing cops to help send a killer whale to the moon where it, too, died. But there is a lot of crude humor. Some people can't get past that to find the "real point."
My mother, for instance, would agree with many of the real points. She would not, however, find the episodes funny because of the crudeness. Therefore, when I am at my parents' house for holidays I do not watch South Park with my mom in the room.
There's a big part of me that wouldn't be comfortable at all if my Dad liked it :~D