One - Infidelity is almost a guarantee in Western relationships by one partner. It's either you, her or both of ya. It's going to happen.
It doesn't have to happen.
Two - Infidelity is both a symptom of a genetic trait that cannot be cured, and a symptom of a dying/broken/corrupted civilization. In the former (genetic) they'll do it again, guaranteed. It's who they are. In the latter - maybe you can rebuild, but I doubt it. I'm predisposed to Infidelity. Whatever is inside me that flips that switch is a permanent part of my genetic makeup. I will always cheat. I'm not a safe partner and never will be.
What's the gene that causes infidelity? You may be predisposed to infidelity, but that doesn't mean you or anyone else needs to act upon it. You are not an animal. You have free will and can make choices,
Three - Speaking strictly of Western civ. courts, Society, etc. are biased against the male spouse. Loss of children, Economic standing, etc. are things Broken Husbands are almost guaranteed to be nailed with. Along with isolation, vilification, false domestic reports (turned into a criminal) and very little to no emotional support.
This appears to be true. But an anecdote doesn't have to be your life.
Four - Marriage as an institution is not worthwhile for men. There is very little incentives and a lots of risks. I liken it to a prison - Women can get out anytime and be paid for their time spent in there - Men just have to suffer it, or lose virtually everything to get out. Not worth it.
Despite my wife's affair I found marriage very worthwhile. I found the incentive of loving someone so completely to be very fulfilling. Marriage comes with all sorts of risks, just like life, business, sports, jogging, fishing, camping or going to a concert in Las Vegas.
Marriage is not a prison. I found it very freeing to be devoted to one woman for the rest of my life. I went from being the slave of singleness to the joy of a lifetime partner.
Do women fare better in a breakup? Maybe, maybe not. But I never got into marriage for personal financial gain. I suffer much more from the pain of her affair than the worry that she may "get all my stuff." She can have it all. It was still worth it.
Five - There is a demographic difference between Female behavior even in the West. Certain female demographic behavior is out of whack in our Societies, which makes the other four things when applied to men who... date? within that demographic have it even worse.
That sounds a bit sexist. But a difference between men and women? That's not exactly news.
MGTOW is simply a natural thing borne out of systematic injustice and perverted/corrupted/broken societies.
MGTOW, sounds more like children picking up their toys, when they don't get their way, and going home.
How about MGTRW? Men going the right way?