You are not wrong. Seeing jingoism and corporatized patriotism for the sham that they are really opens your eyes to how much of it truly exists. A person who wants no politics in life is often fine with a national anthem, a gigantic flag stretched across a stadium, with jets flying over for a Cheez-It Citrus Bowl and has absolutely no idea that it is political propaganda for nationalism and perpetual war.
In my 50+years here, it has only gotten worse and worse. We’ve always stuck our military where it doesn’t belong, back to the beginning with genociding indigenous peoples here. Now we stick military bases all over the planet and strong arm every other nation into unbalanced alliance. We create conflict for oil and to line the pockets of defense contractors. We aid those currently committing genocide and protect the perpetrators from receiving international justice. Nationalism and fascism snap together like two magnets.
Every time I am told to stand for a national anthem at a professional for-profit sporting event, I think of these things and remain sitting.
That’s a lot of questions, many of which I don’t know. All I know is that it is possible for the US to close all the bases and live in harmony with other countries around the globe. It is, however, improbable due to immense wealth among industrial sectors in the United States who hold the actual cards. Their greed will inevitably lead to full scale war as they wither and cede power.