In my opinion, the help we give ends up going beyond mere defeat of a foe. We end up staying to help “rebuild”, then we start putting political pressure on governments to conform to some sort of quasi-US policies. In effect, we end up nation-building. This appears as a threat to other nations in the area who see us as economically, culturally, and politically imperializing the region. To be honest, this kind of pushback is entirely predictable from an outsider looking in. It’s part of the reason that a restrained foreign policy is required one that tends towards a more isolationist policy in all but the most extreme cases (like the eventual, unrestrained conquests of Nazi Germany and Imperial Japan). Even in those cases, we overstayed our welcome and noble purpose.
Yet, the allies we help rescue then interfered in helping Stalin and they begged us for help. Once we did with rebuilding Europe, the Soviet Union saw it as them against us and the Cold War started.
We should have let them all rebuild themselves.