The real issue is the concentration of power. WeChat is the gatekeeper and moderator of basically everything in China. They decide what apps and services are allowed to be successful. If they see something doing well, they have the data and the control to make a copy of it and replace the original with it. Sort of like Amazon does in the retail space.

Elon is working on replicating it now with “X”. He’s already said he wanted something like that for the US

They tried it in Vietnam and discovered the lower iq recruits were more trouble than they were worth and made the military run worse overall, so it’s probably unlikely to happen again