[leishman]

It's very relevant. Mining is very easy to geographically diversify. PoS coins will almost all be controlled by US based custodians subject to US regulations. PoS coins will be controlled by the US financial industry at the end of the day

[zionic]

This is completely false, late/end game PoW centralizes mining around the cheapest electricity. It is impossible to mine profitably in the overwhelming majority of the world now.

[8note]

Your government controls which coins you are able to use.

It doesn't matter if the coin becomes run by another geographic area if it's illegal for you to trade in them