Yes, he does have a point. And, yes, I do care. But I quarrel with the wording of the OP which suggests that belief in multiculturalism is a result of a decline in Christian belief. (They may be different symptoms associated with the same set of causes, but that's another matter). There are many atheists, I imagine, who, like me, are deeply conservative, love our cultural inheritance and despise the intellectual elites who control public discourse and educate our children. Not just contempt, but horror too, because I can see only two results if the immoral social experimentation now being conducted in the name of multiculturalism continues.