Bitcoin mining is actually quite centralized in a few players; and the exchanges have established offices. The gov.s could have done some serious damage.

edit: nice try Satoshi!

They're only centralized because free markets tend to favor centralization. Should the big mining operations be shut down, it would become instantly profitable for smaller miners to switch on again

So what you're saying is we will go raid unrelated folks? Where would you stop, would you also seize assets of people running non-mining nodes?