Even if they did try to be isolationist the American government and other globalist nations would not let them. True Russia and China have no interest in being isolationist they want their own empire. But the US has meddled in isolationist nations(like Japan) which caused them to become a problem for everyone later (if Japan was allowed to be isolationist they would not have done the whole ww2 Imperial Japan thing)
True, NO ONE has an interest in being isolationist. It's a unfixably ridiculous idea, on the same level as greens, pacifists, and anarchists.
Countries "meddle" since the ancient times when countries first existed and had a foreign policy, it's the norm, you can stop, but everyone will laugh at you and fuck you over for it for as long as you do.
No, the people who are the elites in the USA want a "rules based international order" aka American Empire.
Well, what international order do they want then?
American isolationists are perfectly fine with a sphere of influence based international order. Again that's what the Monroe doctrine is the New world would be our sphere and we don't care what goes on outside it.
The isolationists out of all people would explicitely want to fail enforcing their sphere of influence (fuck, even the interventionist establishment is half assed at it at best), also it's not XIX century anymore, so there is no reason why US sphere of influnce should have that specific shape and size.
Umm nukes are the final guarantor of sovereignty. If we are truly committed to protecting those nations then nuclear weapons would be on the table, and no ammount of allies will help against that.
Americans, or most other people for that matter, would prefer a "rules based international order" than unlimited world nuclear proliferation.
Again, conventional military are only useful for offensive operations. At the end of the day if you are satisfied with what you have and don't care about what goes on outside your borders you only need nukes, and then genocide whoever invades you. America's nuclear arsenal is far more scary than it's army.
LMAO... There are whole treatises written on it, you can't counter stuff like hybrid warfare or naval blockade with nukes, you are repeating what is essentially smartass 14 year old takes on national defense.
Perun has recently made a nice video explaining such basics including WMD strategy and alliance strategy if you are interested: