Ah, yes, of course. But not all Christian and Jews. More reasonly-minded Christians and Jews could pool their resources together to build a church and a Synagogue to honour those Christians and Jews who died in 9/11. Again, it would be a fitting tribute. They're just angry that Muslims thought of this first for the Muslim victims of 9/11.
By the way, this was a balanced report on this:
It points out not only that Muslims lost loved ones on 9/11 too, but that some of the non-Muslims who lost relatives on 9/11 support the Muslims in this. It would seem that YJ's just out to lunch.