Indeed, 1/3rd of Belizeans live in the USA, because the economic opportunities are lacking in their country, in no small part due to corruption of local politicians.
There also are incentives to move to Belize, allowing you to move your household possessions, cars, etc. down there tax-free. Just pay the government a small fee.
I've spent time down there, it's a beautiful country, but with an odd mix of enclaves of super-expensive housing developments for expats, and shanty towns for locals.