There's still the eency weency problem of 90 million US gun owners holding an estimated 270 million guns. Who's got the balls to come and take them?
Even if they find people bold enough to try and take Americans' firearms, they won't collect but a handful before all out revolution erupts.
I hope they know that it would be a suicide mission. It really would be.
May God have mercy on them, because we sure won't.