@Arcana@scathach well drones are already useful, and I expect them to be fully automated soon to the extent they aren't already. we might well see things like self driving tanks soon too
I don't think the US is likely to run out of "tens of thousands of lukewarm iq grunts" in the immediate term to a degree that humanoid robots would be viable, especially when they can rely on third world proxies or mercenaries instead