If the U.S. collapses so does the whole world. Many regions in the globe (eg. Israel & the Middle East, Eastern Europe, the East Asian archipelago) are stable because of the threat of U.S. intervention if a large regional power decides they want to dominate the region. Take away that threat and you're going to get some very quick invasions as local powers seek to take advantage of the situation. Plus the U.S. dollar is the global reserve currency, so its collapse would send financial shockwaves through many developed countries.

Better to build local relationships where you are and focus on mutual aid & defense agreements with friendly local communities. The threat model here is a breakup of the U.S, not an invasion. The threat model to an individual is much less if you're in a community where the other individuals have your back, than if you're a minority or outcast in unfriendly territory.