I'm pretty sure that's the point of the comic. He is a cartoonishly specific type that this woman is looking for, even the absurd aspect of him having a lobster head that we are shown most people do not have (obviously), and he discards her as a prospect over potentially superficial differences in religious belief.

I wouldn't call my foreskin a minor adjustment!

Then why do I see so many clips of jews spitting on christians?

Playing dangerous games if you are a literal believer. I've heard of it working, but it certainly doesn't seem to be the norm