People might not be aware, but the bulk of the support given to Ukraine has been military surplus gear, rather than cash. The US has sent tens of billions in cash for humanitarian and some military support as well, but the bulk of what’s counted in the $100B+ of aid has been in the form of weapons and ammunition and vehicles.
Most of which we were going to decommission anyway which would have cost us money. (With the patriot missile battery being a notable exception)
Yeah, it is profitable for the US that Ukraine people keep getting slaughtered.