I think you misunderstand their point. I think their point is that it's difficult to talk about a "typical European condescension" given that "Europe" is not one culture. It's made of many very different countries.
If you randomly take two Europeans, they probably speak a different language and have completely different opinions, but chances are that they can't even understand each other. If you randomly take two US citizen, they most certainly have a shared identity.
I think that is not nearly as certain as you say. Some identities are very very outside the norms of local culture. (For example, I identify non-human, which is quite rare in any part of the world)