I think it would help, but we could still be better.

As an America living in southeast with ~40 years of life to plan for, I face the similar issue of: which country can I feel can be a 'safe' home for me to live in?

If Vietnam had a f1 -> h1b system (and no country caps), I would still not feel safe to call Vietnam my home.

- The h1b is a lottery. I could work my butt off and still just be unlucky.

- H1b is tied to employment. If I lost my job due to economic situations, poor politics, or personal health issues, I have 60d to find a new job or buy airplane tickets to leave.