Stocks will die.
The corporation, which they are built upon, will go away. The corporation, allowing the corpse to act like it is alive is evil. Allowing a group to hide behind it, externalizing costs and internalizing profits is evil.
A business will be seen as too important to sell, in parts, on the open market, to random buyers.
You can't serve the customers and the share holders at the same time.
Within 50 years, all the big corporations will be gone.
The entire concept of stocks, corporations and a stock market will go away.
Of course, that is over 50 years, and in between now and then, we will tokenize, NFT, the stock market.