In typical American legal parlance a “machine gun” is any firearm that fires more than one round per trigger pull, so it’s more or less correct.
I would say it is a problem when criminals have a way to magdump a police cruiser in literally under a second with a concealable weapon.
From a global perspective, the average middle class or even working class American who drives everywhere in an SUV, eats huge portions of meat products at wasteful restaurants, and generally consumes ten times as much as the average person is part of the rich. And yes, we deserve it.