There is already one similar to that. Cartman has to get rid of the hippies by playing raining blood by slayer. And the hippie drill. Around 2006 I believe. Before chef got axed.
I remember that and because Cartman hates hippies I used him to come up with the idea to rid South Park of these protestors. BTW, the moment I saw the Red Shirt Guy from Atlanta I knew he was perfect for a caricature. In fact, he actually does look like a living cartoon.
Remember, the ideas I presented for an OSP episode of South Park aren’t set in stone. Anybody is free to come up with their own ideas but these protests just BEG to be immortalized on South Park.