Important reminder: every religion-, politics-, lifestyle-, medium-, diet-, sex-, or subculture-based group that you don't belong to will almost certainly appear to you as much more pushy, arrogant, loud, self-righteous, and intolerant than the average member actually is. That is because you are much more likely to interact with the loudest and most arrogant members of the group than with the quiet and humble ones.
"How do you tell someone is X? Don't worry, they will tell you first!" <- funny as a joke, idiotic as a serious observation; you think all X will tell you loudly about Xism because you never hear about the X that don't