Agreed.. maybe it isn't self-hosted fully but people should still be welcome, even if they're not in a situation to self host on their own hardware and has to rent someone else's.
Maybe difference is majority of Vietnam actually hated US, even south Vietnam side because of atrocities (Zippo raids, Agent Orange, etc).
On the southern side of Korea, normal people hate communists (asians also just hate each other a lot and rhe North was backed by China) and actively sought US help + didn't commit as much atrocities so good support and outcome for everyone.
My first job, big boss dangled salary increase if I could get project delivered on time so I worked my butt off. I got the salary increase but I was still paid less than what some new starters with same experience were making.
Gruff