He has a point but applies to both men and women. Back in the day, in my generation, 99% of single folks ended married. Why? relationship is top priority or one of the tops. Everyone has someone, a boyfriend, a girlfriend. If you didn't you look for one until you have one. Now, that's not the case anymore. Now, career, finance, hobby, friends, family take over priorities of relationship.
Also, now relationship happens by LUCK meaning waiting for that chance encounter and not actively seeking for relationship. In my generation, you don't wait for luck. You make it happen. You visit this girl, that girl, have many many chance encounter to find her. AND because you put yourself out there, you find that person.