Incidentally, the scale for disrupting the US's state sponsored dominance of the internet could readily be implemented at the state sponsored level in another country, and claims and disputes over access to markets made at the WTO level.
Among the BRIC's, Brazil and India are particularly well placed - neither has a massive security apparatus. Mexico by proximity is also positioned to serve the US from "offshore."
Anyway, boycotting US cloud tech is not that hard, albeit a bit inconvenient in some cases. In many cases putting data within legal reach of the US government is simply illegal, so an entire market has sprung up to offer services that guarantee non US ownership and no data and services within US jurisdiction.
And this is just for the sake of regulatory compliance. In fact, it's probably the #1 selling point for non-US cloud services already. The NSA shitstorm is not exactly going to have a negative impact on that market...