I’d like to put all the right-wing and left-wing extremists on a desert island together and have them fight to the death. There would be a fresh water supply on the island but all food would be airdropped in to a central location that factions would then need to fight for. I would also lead them to believe there was a prize for winning, but after it was over and there was only one group standing o would just nuke the island with a low-kiloton device and have a good laugh.