Let's talk religion

The belief in one, all-powerful, and merciful God who is the creator and sustainer of the universe.
Edit: For all three.

I kinda resent the "primitive" part. Even Ancient Mesopotamia had a very complex culture.
But essentially yes. Religion is partly a way to explain the universe and also (and probably more importantly) a handy replacement for the evolutionary proses of genetic programming - something that allows to condition people to survive and thrive in their society.

   Religion is the storehouse of something better understood as "tradition."

   Over the vast extent of history the world and traditions have changed.

   At the dawn of civilization there was a sort of "tradition" of animal sacrifice.  It did not seem so cruel to many people because animals in the wild are cruel to each other.  Later as life became much more settled and kids became attached to their pets the idea of animal sacrifice lost favor.  It no longer served any purpose.  It is no longer a tradition.

   At first gender roles developed for various reasons that seemed practical.  The gender roles of animals in nature sometimes follow patterns similar to those early humans followed.  Again as the world became more civilized the need for hunter-gatherers and child sitters changed.  In the uncivilized world when disputes arose it was practical to appoint authority in that matter to some person or other.   In the civilized world something understood as "reason" is given authority.   Over time it became apparent that males and females have an equal capacity for reason.

   Modern Christianity does two things in this regard.

   It still has a "tie breaker" for those rare instances when a couple cannot reach an agreement through reason.  It is important to understand that is only a tie breaker so that a house will not be divided. A "house divided" is not a good thing.

   The other thing modern Christianity does is recognize the capacity of women to contribute to the determination of preferred policy. 1 Peter 3:7 says, "Husbands, in the same way, live with your wives in an understanding way, showing honor to the woman as the weaker vessel, since they are heirs with you of the grace of life, so that your prayers may not be hindered."

   I suppose some people will find the terminology "weaker vessel" is not completely accurate, nevertheless there is the reasonable consideration of the interests of women.

   Science fails when it tries to settle matters that can only be settled by tradition.  When people had to cross a large stream it was not unusual to consult tradition.   How did people before us get across?  Science can offer the choice "build a bridge" that might well be practical in the circumstances.  Still there are quite large numbers of problems that science is utterly useless to solve.   Then it is necessary to consult traditions that still seem sound.

   The "left" is in a state of shock now because they believed and still believe religion is the problem. Religion is not the problem, stupid people are the problem.

They all promise you that the next life is going to be better than the current one. Acceptance of this argument is an excellent filter for selecting a compliant flock, willing to endure hardship for a reward after death, give money to the church, vote Republican, and be more likely to go for questionable real estate transactions.