CGPGrey, formerly a physics teacher, claimed the teachers know when they ‘forget’ most of the time. They’re tired too and wanted to get away with not having to grade it. He even joked “that guy who reminds the teacher they forgot to collect the homework? We don’t like them either.”
Him and his father both have some odd idea that they have such good genes they need to spread em around to pass down their superior semen. It isn’t exclusive to them (see Nick Cannon and others) but it’s also a common white supremacists or evangelical belief (see Great Replacement Theory and the Quiverful movement).