All three want world domination. Check. All three are, or were (and probably still are) willing to kill all the infidels/heathens/goyim to get it. Check. All have the same basic beliefs or tenets, in that all three are seeds falling from the same poisoned tree. Check. All three claim to be the one and only true religion. Check. Beyond these generalities, one need only sit down with the Torah and Talmud, Old & New Testaments, and the Koran for a bit of comparative study to find hundreds (probably thousands, as I got bored early on) of comparisons. In fact, if these books were written today, the academics would be frothing at the mouths with terminal 'plagiarist fever'.