Claude was the first AI certified for use with classified systems in the military, and it got thrown out because they refused to allow it to be used for autonomous weapons or surveillance of US citizens. Up until two months ago, the Trump admin's position was deregulatory to the point of trying to prevent state regulation. They're not declining to work with the US government; the US government is declining to work with them. Here is Amodei explicitly calling for regulation yet again:
https://darioamodei.com/post/policy-on-the-ai-exponential If you have any evidence of Anthropic failing to back that up with actions, I'm interested in seeing it.
To be clear, I don't love Anthropic. I just feel that they're the lesser evil, and a product of the regulatory environment. No doubt there are many talented, conscientious engineers who declined to work on AI--and very few of them even have a seat at the table, today. Don't hate the player, change the game. The best way to do that, is use Anthropic's commitments as leverage against OpenAI et al. Do you think that OpenAI would have been so transparent if they didn't fear that comparison?