MAGA folks are conspiracy nuts and AFAIK one of them is that USAID was a tool of the CIA to have influence over foreign governments (or smth like that). Which was peddled by anti-imperialists originally, AFAIK. It wouldn’t surprise me if this somehow transpired into MAGA circles and was interpreted as an instrument purely used by democrat elites to rob hard working Americans of their tax dollars, which is of course happening more than ever under their current kleptocratic “government”.