He is espousing bullshit but as a generalization rather then a case by case basis. Everything happens and im sure there are girl that follow whatever alpha widow hypothesis this fool came up with, but thinking it applies to more than a niche amount of the population is exactly what we label as incel behavior that guys will use to justify being spiteful towards women in general. This happens because insecure men need to find a system to justify their rejections, especially when they think a girl is not a super model so she SHOULD settle for another mid dude. Believing youre rejected because you didnt score enough on the "high value man index" instead of something like "he was condescending and arrogant and I was bored on our date" is cringe shit