Most of the countries are pretty high on Democracy index. Some higher than US.
Turkey comes to mind as the only standout. There is a general trend towards autocracy in the last years in places like that.
Which is sad and a threat to the world imho.
But even Turkey (which is probably the least democratic nato member?) isn't comparable to Russia. looking at a map the rest of NATO all fits in the green shade on the democracy index.
And also just the basic membership requirement: consensus vote by existing members.
So kind of pointless it's trolling from the start.
Plus respecting borders one of the founding principles lol.
Could look at civ control of military too. turkey is super complicated there. the autocrat definitely does not have control, the opposite. Unlike putin. But in turkey that's also scary and no so comforting for collaboration.