Earlier quoted context omitted.
The best mitigation strategy here is to engage your vendors with private contracts instead of depending on generic terms of service (ToS) alone. Every company I've worked with has negotiated separate agreements with providers to reduce risk. Including contracts with both AWS and Azure. If your business gets to a certain size and you are still on the generic ToS and paying by credit card you have a big risk on your ha…
I don't think it's possible to secure a contract with such favorable terms that you can not get cut off for inciting physical violence on government property. OP would also need to be a fairly large player to able to negotiate favorable terms with someone like AWS to begin with.
Not only is it not possible in the pragmatic sense, I don’t think its legally possible, since knowingly carrying such content is quite often criminal (not just for you, but if the higher-level vendor knows about it its criminal for them), and a contract to commit a crime is usually void.