He has no clue.
He’s still trying to sneak “welcome the Muslim” in there under “welcome the stranger.”
While it is true that the ideas Jesus expressed have been absorbed to some extent by some cultures, without their actually becoming Christian, these people are moral freeloaders, depending on the strong virtue and order provided by others to have a strong society. That’s not the same as belief, which teaches and propagates and devotes all to the Lord.
It doesn’t count if you don’t write it in ink.