you can have an acceptable domestic government that had made unacceptable mistakes in foreign policies.

It does not change the validity of democracy if democratic nations make mistakes.

And it does not legitimize a tyrannical government just because democracies have made mistakes.

Edit: I'll double down. The whole point of democracies is to hold our governments accountable for those mistakes, something that is (at least by design) much harder in non-democratic governments.

If you want me to actually engage with any of this you're going to have to give me a little help understanding how someone arguing in good faith can imply the US government has ever been held accountable in a way that changed anything about how it operated. From where I'm standing, that descends so far into fantasy we may as well be playing D&D.

I'm not implying anyone has ever been held accountable. And nothing I said is less true despite that.