Two things:

First, what you propose may work only if happenings in other countries don't affect the US, which I very much doubt.

Second, in most of these countries, it is actually the drip-feed of supposed western "help" that props up corruption and prevents any real change. The "aid" is a form of control, not actual help.

If western nations wanted to actually help, they would support the Grand Inga dam project [1] to actually lift people out of poverty. Instead, they oppose it on environmental grounds, never mind that their industrialization was built on the back of massive pollution.

1. https://en.wikipedia.org/wiki/Grand_Inga_Dam

Where foreign aid is concerned, I would much rather that my tax dollars go into building the Grand Inga Dam over the kind of "aid" you describe.