>Since 1945, I've seen estimates that say the U.S. and Western Europe have donated in the neighborhood of $1 – $2 trillion (with a "t") dollars to various developing countries. It hasn't done much. Why not?

Because these money are not about helping those countries grow. It's about keeping them down, financing local lackeys, directing their progress in ways that benefit those giving the money, pushing political and cultural agendas, etc.