Class is about relation to the Means of Production, not simple wealth. The US is largely made up of labor aristocracy who benefit from Imperialism, like you pointed out, but arenāt bourgeoisie.
Secondly, putting people to death isnāt the goal, changing property relations is. Adventurism is cool to see, but doesnāt actually change anything.
Itās, again, a relation to production. Capital Owners, ie business owners and whatnot, are bourgeoisie. I suggest reading the first section in my introductory Marxist reading list.
So business owners must die got you. If I do some freelancing sometimes, should I kill myself? Asking for a friend.
Except others above are literally calling the middle class bourgeoisie.
Maybe you should all start reading, because itās obvious this community isnāt politically savvy enough to understand the words it throws around.