This feels like a straw man, I did not make the argument that founders will retain all of the value. Obvious the economy is complex but corporate profits and executive pay are at all time highs. Employees are capturing less and less of the revenue stream. Now, founders may not retain their ownership but the ownership will remain in the hands of the class of the wealthy.
(I think it is a weak point for me to make, but I'm pretty sure there won't be Uber drivers in 20 years, probably not in 10.)