Plus if he truly believes what he's saying, he's going to have to learn things the hard way about doing things related to crypto. I hope he gets a very expensive education.
That's the thing. These people usually know exactly what they are doing. The most hardcore ones like the one the OP has quoted, are either corporate employees, shareholders or they have a business directly in relationship with coinbase. Otherwise one can simply not be that stupid and fanatic at the same time.
He probably won't get that lesson you are hoping for because he is probably on a payroll and saying things which he doesn't really believe.
Anyway, not my problem as I am not the one who uses coinbase, hell I don't even use any centralized exchanges anymore.
Self custody or bust. This is the way.
This is the way. This is the way.