There is no where to run to.

There isn't another market that could take in even part of The US market.
Everyone wants to replace the dollar, but no one is exporting their currency in a large enough of volume to take over.

Bitcoin isn't even big enough.
Even at $1,000,000 bitcoin won't be big enough.

I suspect when the crash happens, it happens over seas. and sweeps across the world, and then hits America. And, there will be no place to run.