Each one of these actions is a stepping stone the world is taking as a direct consequence of U.S. political negligence. And however difficult it was to render this consequence, it will be tenfold, or hundredfold, as difficult to reverse course.
Almost as many people voted against the current US administration as voted for it, so although it is true that "so many US citizens do not see the ramifications", there almost as many who do (or some version of them).
Kamala Harris/Tim Walz 75,019,230 48.34%
Donald J. Trump/J.D. Vance 77,303,568 49.81%
Various Others 2,878,359 1.85%
So, 50.19% voted against Trump, 49.81% voted for him.