so are americans ever going to interrogate the implications of this 'no one is allowed to criticize us' attitude or what

It's literally not that no one is allowed to criticize us. Our government deserves all the criticism it gets. This meme is about the fact that Europeans like to pretend that they live in post-racial utopias where nothing bad happens and they can look down at those silly, backwards Americans. Maybe y'all should interrogate *your* attitude about your own history of violent colonization before you worry about our country.