Comment by ben_w

Before such missiles even get launched, there's a serious risk of the US military saying "you are no longer the president".

Even with a room full of sociopaths, a president ordering a missile sent to Minneapolis, Denver, Portland, NYC, Chicago, Seattle, Austin, etc. is the kind of thing that makes the stock markets very unhappy, what with those missiles hitting expensive business property and/or staff and/or customers.

Even if the military and the local business leadership are all on board with the plan, foreign investments will crater, and the US needs that even just to handle the lack of balance in the budget.

And that's all true even without the 2nd. I don't, and never have, bought into the story Americans tell about the 2nd keeping them safe from tyrants: it's neither powerful enough to do that, nor necessary to do that. But all those easy-to-access firearms and training to use them would make the second civil war extra brutal.