From USAID to the U.S. federal payment system, Musk is spearheading plans to audit and cut multiple government agencies

USAID and SpaceX worked together to support Ukraine’s war effort against Russia, and provided internet to multiple African countries.

Killing USAID by contrast is, as experts have noted, a gift to Russia and China. It's a gift to Russia because the current largest line item the USAID budget goes to Ukraine, which has been as devastated by the Russian invasion as many of those European countries were by the Nazis in 1945.