Thank you.

Gladly. The idea that "you can't be a dick" applies in general- there's no need to give religion special protection.

There are clearly countless bad ideas that come from religion. Saying "you can't attack this idea, it's above reproach because I claim it comes from God" means all you have to do is find some justification for an idea from a religion and suddenly that idea is invincible, save where it butts into conflicting ideas from other religions. Considering the sheer quantity of religions that exist, and the extreme verbosity of their texts, you can basically find a justification for anything and everything in a holy book.

That's no way to attain progress. God is not a shield to defend an idea. Whatever position you take on an issue should be given in terms of its impact on humans, not the claim that it's what some sort of divinity wants- unless you can actually prove not only that a divinity exists, but that it's that specific one, that the book in question is intended to mean what it says (ie: no translation errors, no 1500-year-old editorializing, etc), and that the divinity in question hasn't changed his/her mind.