Not missing his point at all. In point #1, he comes up with an out of thin air stat, showing his disdain for people who invested as they should have while he didn't, and in point #2, he's bringing up a ridiculous scenario where EVERYONE properly invests as they should for their retirement and to pass money on to heirs, and because he says that would not be good, he has decided not to invest as he should so that he's wealthy and can pass money on to heirs. There will never be a time in human history where everyone invests as they should, so if a person DECIDES to do so, this strawman scenario will not exist and therefore have no impact.
If you make a ton of money and don't want to give it to your children because you think it will turn then into degenerates, you can always give it all away. I say that's a d!ck move...better to set up a trust that they can get when they turn 40 or whatever age you decide. I, personally, don't intend to use money as a weapon, so whatever my wife and I have when we die will go to my children without conditions.