Historically that would definitely be true, but there's a couple interesting anecdotes in the article where some of the men mention spending their time holed up alone either on their phone, watching TV, or doing various leisure activities like karoke. In the past they didn't have those kinds of distractions and/or solitariness. The reality is they may just grow old and sad often stuck in their remote village far cut off from any center of power or importance.

Those are two things that can happen, but a more generalized version of that is an increased drive for exceptionalism. Men will take more risks to succeed at all costs because the safe route means failure. That can be mean war, where many men die and the survivors are the exceptional ones. But it can also mean a highly-stratified society with a class of unsuccessful men who will never marry or have children who are likely treated as not much above slave labor.

Wars are killing men, which isn't happening for a while like before. So men population grow fast and there is nothing to decrease it.