>Why does this happen with religion and not with Javascript

Really???

Vi vs Emacs Linux vs Microsoft vs Apple Android vs iOS java vs C++ Rust vs any other programing language Gnu Linux vs Linux copyleft vs mit/bsd style licensing js framework x vs yet another javascript framwork y

there is a reason these are called religious wars.

baking i don't know their religious wars i am not big on baking outside of my cookbook, but pretty much any technical debate degenerates into the same thing in my experience.