He sees that soldiers are slaves of Nation States in service of Geopolitical goals so he creates a mercenary army free from any country, to fight for whoever regardless of ideology
This just makes soldiers slaves of the market and it's Geopolitical goals :think-mark: and when MSF got rich enough that they didn't have to take every mission, the soldiers just became pawns of Big Boss, Kaz, and Ocelot. Virtually no different than serving the US or the USSR, which they end up doing anyways.
A world where soldiers are free and will always have place? The only person remotely free in this new scenario is Big Boss!!!!! :think-mark:
See I think part of the reason MGS works is that it's all weird and fucked up. If you made a game where your preferred ideology is triumphant and wins then that's just cope. But MGS is like "Hey, isn't it fucked up how - Infomation control! - Propaganda! - Nuclear War! - Child soldiers! - Soldiers abused and then forgotten!" and so on and so forth, so there's actually something to think about beyond just the gameplay loop.
Although I like the Kojima-ism storyline, I also just like the motherbase style gameplay loop.