why is everyone pretending like there isn't precedent for this. name me an era of x-men where the legal system was circumvented to punish enemies of the x-men? Magneto had his mind wiped. he had his spine severed. they very much though it was him they were beheading. why is that ok but imprisoning Sabretooth isn't? he proved himself too unstable to follow a simple order. if they had given him a pass, they'd have to room to punish anyone down the line.