To you, perhaps. It's pretty patronizing and narrow-minded to write off the views of billions of people as "archaic". In fact, theism is so common that you'd have to be in some kind of bubble to not have any friends, colleagues, or acquaintances that are theists. I'm sure they'd be disappointed (if not offended) to hear you refer to their beliefs like that.
If you want people to keep their religion to themselves, you should really treat their beliefs with a modicum of respect. Otherwise, you're just being abusive.
But your main point is well taken; infighting, irrationality, hypocrisy, and other bad behavior are certainly not unique to religious groups. Humanity is a much more common factor than theism.
As well all know, deprecated does not necessarily mean obsoleted. That is deprecated can eternal lie, and with odd futures even faith may fly.