Same reasons a non-citizen can get elected..........
And the very reason that at this particular time, I think the citizenry needs lots of M4's and bum-fire stocks as well.
The well armed militia could easily fight its way to the good stuff and prevent an unlawful government from seizing control.
I hope that if there is some sinister/secret movement that kills kids to try to bring about gun confiscation, that they become known to us, and our secret groups/societies...