Muslims are dangerous because of their religion, whereas Jews are dangerous because of who they are by nature. The most dangerous Jews are, in fact, the ones who have turned their back on religion entirely.
Turning Jews into Muslims would therefore enhance the danger they present being given billions of pawns and turning them to a more dangerous religion based around conquest, whereas turning Muslims into Jews would actually result in a net gain with regard to safety as they'd be dangerous neither by religion or nature. Turning Muslims into Jews is therefore the objectively correct option, if you're looking at things through the lens of what's best for the world.