Americans have forgotten that pieces of paper need to be backed up with threats of violence.

I honestly don't understand US politicians. In my country politicians have egos the size of mountains- they would never let themselves be sidelined.

Presidents have been doing the undeclared war thing since the end of WWII. Nothing new there, the tariffs and other EOs have maybe increased markedly in the last few presidencies.

George W Bush sought and received authorization for Iraq from Congress.

It's not just the war, obviously. This time the President has immunity levels that are unprecedented. And his cronies in Congress and SCOTUS don't seem inclined to rein him in on much.