The thesis of this video is that marriage is good for men. The speaker, a professor of sociology, lists a number of facts in support of his argument:
men who are married tend to earn more money than men who aren't married.
married men tend to work more hours than unmarried men; and
Married men are more likely than unmarried men to wait until getting a new job before quitting a current job .
Interestingly, he also notes that men who are married tend to work more hours than men who are divorced.
His conclusion is that marriage is good for men, with the unstated assumption being that the purpose of manhood is to maximize one's earning capacity by working more hours.
He never asks why married men work more hours than unmarried men, or whether married men are happy working more hours than their unmarried peers.
Interestingly, he doesn't explicitly state the common sense conclusion that working more hours = more money. This is a very dangerous conclusion for leftist-progressives because it largely explains the mythical and fantastical "gender wage gap."
Basically, this video is arguing that your purpose as a man is to earn as much money as you can for your family. Thus, your value to your wife and children is purely financial. Your happiness, your time, your presence in the household don't really matter, so long as you are maximizing your earning capacity. To the extent that married men need more money to support a family than unmarried men, working more hours is good for you. He never considers the counter argument that unless you have a job that you really like, your time is more valuable than your money; spending time doing your hobbies, or spending time with your family and friends might be more valuable to you than earning a fatter paycheck.
The difference between unmarried men, which includes divorced men, and married men is that the former have the choice of where to spend their time, whereas the latter do not.
So, gentlemen, make sure you get married so you can lose your last vestiges of free-will and slave your life away in the capitalist maw.