Miami is already famous for the crypto conferences, right. And Miami isn't really competing with China as China is essentially kicking those miners out and they don't have the access to cheap electricity like they had earlier.

The reason this won't workout is because a lot of these Chinese mining farms run with bare minimum manpower which is paid pretty low for the maintenance and running activities. The labor laws and minimum wage requirements will not be acceptable to the so-called Chinese "entrepreneurs" who are accustomed to treating their workers like they own them.

This will work best if the barriers to Chinese miners essentially takes them out of business resulting in decrease of demand for miner hardware and cheaper hardware for American miners. The US miners can then take the mantle and afford to run additional farms.