We don't have to remove all army overnight, and we have a body to discuss demilitarization efforts - the United Nations. Moreover, military alliances should be reformed to include everyone who signed up for demilitarization in order to have enough collective power to defend from others and enforce compliance.

With enough political will - will that should come from the bottom up, from us - we can push governments to discuss that. But instead a lot of people just get into that "inevitability" trope and do nothing to stop the meat grinder - especially in countries like the US or Russia or Israel or other corrupt forces.