I truly want to understand this.

Why do men cave in to their girlfriends/wives demands on things they should never be subject to if they have any self respect.

Examples, Caving in to - fights - divorce settlements - baby blackmail - Emotional blame and manipulation - Forcible custody arrangements by the mother leading to separation from kids

Why do women have the fucking upper hand on all the above even when the man has kept his side of the bargain ??

Is it society/conditioning/government control/bad upbringing/lack of a voice to say anything/or all of it??

I can't see women winning the game time and again. It has happened to plenty of my friends and I really feel for them but at the same time I can see they had it coming because of their own fault of making poor decisions , trusting women and not standing up for their own rights.