They have admitted when they were wrong in the past.
All the previous presidents were characters in South Park. Clinton, Bush, Obama…all represented as themselves.
Trump is represented by the most racist character in South Park who is otherwise famous for being fucked up gay trans trans and lesbian transtrans and gay whatever the heck he is now.
It just sort of happened that way, but there hasn’t been a precedent for this.
I don’t know if they’re still doing the “both sides” thing, but they might’ve stopped at some point.
Not that they won’t make fun of people on the political left, but they might have gotten over the political fence sitting.