I like the idea of different religions living harmoniously together, but this only actually works for defanged religions. Religions with teeth that try to occupy the same space are gonna eat each other alive.
Only if the religions are are monotheist, universalist AND proselytism is part of the religion.
Converting people is not part of Judaism.
Polytheist religions often have no issue with extra gods.
tl;dr you are generalizing from Christianity.
There is a difference between a religion causing trouble because of the doctrine itself anda religion causing trouble because of social/political context.