Re: Do you want to be held hostage by Microsoft?
i see your point, but how exactly can you avoid it? Any government may decide to come after you. Case in point, the US government has been picking fights with several US companies (Amazon, Ford, Microsoft). It's not clear to me how hosting their data anywhere else would make any of them more secure against gov't-level interference.
Particularly if the gov't is prepared to ride roughshod over the law, in which case - even if your "rights" are cast-iron in legal terms, it can still take years to assert said rights.
Basically, there's no realistic defence against government-level attacks on your business. At least, not in the sense of preventing them. There are some mitigation strategies, but I'm not sure if "hosting your own data" would qualify as one.