May God bless and keep the Pope .
I like your challenge! What will the folks who say this ISN"T a war of religions or civilizations say?
The Pope could offer that he will put out a directive (encycical ?) making that very statement to all Catholics,,,,and then ask that they do the same to all muslims.
The Pope could even offer to do it first, since he would have no problem with that whatsoever. I'd LOVE to see what their response would be.