For the non-US-American part, that's the Fediverse, the only network that isn't developed and used primarily by US-Americans. As for "wont turn over our data" - it's push-based, that helps to make it a bit harder to crawl, but it's public social media, and by definition the data will be out there as a result of that.
If you're a participant in one of the federated platforms and your native home server is in European territory but your content is federated to a server in the US, can the US server do anything to reveal your identity other than point to the home server?