[SampleMan]

Is it possible? Of course it is. Mohammad effectively eliminated the predominate faiths of Christianity and Judaism from the Middle East. Same works in reverse.

But we won't do what is required, as we did in Japan.

[Pelham]

In Japan you had a national “religion” limited to Japan. Once we were able to force the Emperor to publicly admit that he was a mere mortal the “religion” fell apart. There was no ‘Greater Shintoism” outside of Japan to keep that religion alive.

We didn’t have to threaten the Japanese populace to “convert or die”, which is how Islam spread and seems to be what you are advocating if I read your post correctly. If America tried something like this in Iraq the entire Islamic world would be aflame with rage.