There are plenty of communists living in the west who'd like nothing more than to see western civilization crash and burn, just like muslim extremists do. But should that affect our laws?

I know a few people with deep connections with FARC living in Norway, taking advantage of our western civilization while hoping for a collapse of capitalism. but I don't think we should persecute or ban communism because of that. I still believe it is their right to engage in political debate, give their opinions and try to convince others that their opinions are correct.