This is also why I am going for my firearms license this year.
And once I have it, an FN-P90 with full-sized magazines. Plus something decently portable and long-range. Because if they cross the border in force - and America has had invasion plans refreshed every decade since WWII - I intend to make their occupation as painful as possible. We’ll definitely lose and be fully occupied - 40M vs 134M is no contest - but asymmetrical warfare can be exceedingly effective against a larger (and arrogant) aggressor.
Who’s with me in getting their license to practice at the range with?