Should the US have sent supplies to the allies in WWI and WWII before joining? It was just prolonging the war and causing people to die, right?
The reason the US is doing it is not morality. Everyone knows that. International politics is never about morality, it’s about power. However, that doesn’t mean it isn’t also the moral option.
Also, NATO and the US are not in the war. We’re sending supplies. The US isn’t even sending the good stuff. We’re sending parts of our stockpile that’s old and has just been sitting around waiting for a use. They haven’t sent the newer technology so it it isn’t studied in case a real enemy requires them to be used.