I firmly believe mental illness and history have a lot to do with many ills in society, relationships included. If you are sane and married, especially with kids, a normal thing to do is go above and beyond to solve problems instead of divorce. Those divorcing while they have kids create more significant problems, though they think they are cutting the issues. Wife, Kids, husband, and entire tree will suffer in the short and long term. More importantly, the community and the world will suffer. The family unit is a workshop where humans are molded, fine-tuned, and released to society as decent folk! If not recalibrated right, they will, over time, be defects in a community where they likely churn more flawed humans.
On Polygamy, I think the problems are being exacerbated and magnified because if one cannot handle one wife and few kids, imagine two wives and many more kids. It is better to have eight kids from one woman than two wives with four kids each! The more the relationships, the more problems, mainly when kids are grown and the family becomes large.
Anyone can be a father, but being a great dad or mom for at least 30+ years (Kids to get performing software) requires focus and personal integrity.
From day 1, dad has to play his role and so as mom for decades without ifs or buts. I may view things in the Western mindset since I have lived in the US for most of my adult life. Still, globally, women love a fully present father, especially dads like me who do algebra, the periodic table, and world history and keep tabs on what kids are learning daily. You do the right things and what makes your spouse happy; I don't see divorce or disagreements in the family. Play your role with integrity and efficiency as a head of the household, and everything will be fine. You fail and the whole family will fail!
Drinking in bars, hanging out with friends, and not knowing your kid's routine are ways to fail as a man! You should hang out with your wife and kids outside your everyday routine! It is stress-free and works magic!