This is an absurd idea. Totally unrealistic and basically dangerous to even think of doing this. If you’re not happy with how much funding is going to support issues in other countries, propose bills to address that. Taking us away from the “table” to address world issues won’t necessarily decrease the funding you have issue with anyway and it would isolate us, completely. Don’t think we’ve yet reached the ability to relocate the entire country to Mars. Since we haven’t yet, and share Earth with others, let’s keep communications open with those we share it with so we have a better chance of NOT blowing each other up.