Disclaimer: I'm American.
Our government has repeatedly made it policy to block access to software of domestic origin through export controls [0] [1]
Historically I'd argue most nations could trust the US government only to wield economic sanctions against our adversaries, but the current administration has made all nations our adversary.
I can see a real possibility of the current administration enacting export controls on the European Union for a perceived slight against the President, and Congress will not stop him. For example, if crates.io is an American-based software service, there is a real possibility that the US could ban the owners from allowing access from EU IPs.
Granted, the same is true of GitHub, npm, freaking google... but the tl;dr is that I don't think you can trust us today or tomorrow. I don't trust my government, why should you?
[0] https://techcrunch.com/2019/07/29/github-ban-sanctioned-coun...
[1] https://www.eff.org/deeplinks/2019/08/us-export-controls-and...