John K caused legitimate trauma to underage girls and insults any cartoons that he didn't make. by allowing Ren & Stimpy to come back, Comedy Central is enabling him and his bootlickers and all of their toxic views, regardless of whether he's involved or not.
you might call this "cancel culture", but the difference between John K and, say, James Gunn, is that John K did actual harm to people and refuses to own up to it while James Gunn was "cancelled" for a post he made ten years ago that he clearly does not stand by now.
in case someone responds to this with "but you like The Loud House and its creator was also fired for sexual harassment!" which is true, but Chris Savino accepted the consequences for his actions and allowed TLH to go on without him. John K, once again, is still bitter about it.
if you HAVE to bring back an older Nicktoon, there are multiple better options. hell, MLAATR could actually BENEFIT from a revival. female protagonists in cartoons are definitely more mainstream nowadays and there are multiple plot points that can still be touched upon.