We don't have oppressive regimes in the West (where Amazon is based) because capitalism encourages freedom and economic prosperity. A company not helping you doesn't mean they're against you. AWS does not want a customer breaking their terms of service, especially when it affects all of their other paying clients.

What does that have to do with other nations and their laws? The censoring issue here is in a foreign state and not caused by capitalism but a lack of it. AWS is not international police so you should focus on government if you want to see political changes.