I mean, the real "funniest thing Biden could do" is use his commander-in-chief and treaty negotiation powers to unconditionally surrender the United States to the various tribes of Native Americans, but he won't.
Also, happy 4th of July, you bunch of weirdos!
I can see the problems it would create too, Momma didn't raise no fool, but given the absolute fucking state of the world and everything in it I genuinely believe this move would solve more problems than it would cause.