A lot of editing cuts in that video... I think the dude burst into giggles a few times
There some 'truth' to what he's saying (girls w/ low self esteem are going to try harder, accept being mistreated because they don't think they deserve better). And by extension, guys feel less pressure to be perfect (both in and out of bed) around someone who's willing to settle for less, so that's attractive to them. But it's not a 'perfect' answer that's going to fit every situation.
On the other hand, a lot of 'pretty' girls actually have low self esteem, too; which is why you often see pretty girls with douchebag guys who mistreat them, and everyone wonders why they don't leave