Yeah, I found it so weird. What's the point of all his videos if people don't change? But I do like the general idea he was trying to convey, which is: don't date someone with the expectation they will change into the person you want them to be.
He has a quote I'm paraphrasing as something similar to: "If you bought a car but wanted a boat, don't get mad at the car for not being a boat. Get rid of the car and go find a boat."