It wasn't Mohammed who founded Islam.

[Minimalist]

Or not. That is the issue at hand.

Yes it is, but I put my money on him simply hating the Jews and Christians, they still do, their just quit about it.

Misleading. In general jews and muslims got along quite well in the islamic empire. The jews paid their tax - it was, on a pro rata basis, a lot less than when xtians periodically slaughtered them and stole everything. There was a large and flourishing jewish community in Baghdad right up until 1947 when the partition of Palestine provoked anti-jewish riots. This enmity is a modern invention. And why not? As has been pointed out in many ways the nuttier muslims and jews are pretty much the same shit.