In which case they had better start behaving in a more civilised fashion and follow the habits of the rest of us in creating a better world for all.
No more treating Turks with reverence, as though they can go around behaving as they wish regardless of the Laws, and we all turn around and shush each other so that we do not offend them.
How are they going to learn the difference between right and wrong, and hence improve, if we don't make them aware.
Respect the Turk enough to tell him the truth about the unacceptability of his actions; no matter how much he is offended. We owe it to Humanity.
..... but as for letting them join the EU ..... Never!
.... ultimately the real essence of community lies less in the significance of physical structures and more in a series of fluid social interactions, underpinned by a shared code of cultural norms and values....