The stock market has repeatedly proven that it is driven by inflated and imaginary "values". Any argument in favor of unregulated stocks falls flat in the face of that evidence. At some point the company has to pick utself up by it's bootstraps and start paying it's own way instead of putting the public at risk over hyped "value". It's an entirely fraudulent system designed to crash on the reg and allow a tiny percentage of people to gather and hoard devalued property.
Stocks were originally about getting businesses started and people employed. They are the opposite of that now. Some stocks are actually managed to make businesses fold and put people put of work. This is the job of hedge fund managers (a business that should not exist) and was the entire point behind the GameStop rally.
Currently the value of a stock is whatever someone is willing to pay for it. Who decides what the value should be, in your scenario? A government department?
If necessary, yes. Otherwise its just fraud. "Whatever someone is willing to pay" doesnr make a thing valuable; it just makes the buyer stupid. If I sell you a rusty old tricycle for $6000 just because you have a psychotic nostalgia for it, the value of old rusty tricycles doesnt become $6000.
Elon bought Xitter at what, $45/share? It was never worth that much...he tried to manipulate the stock value (i. e. commit fraud) and a government official forced him to commit.
That would work maybe...so you'd have a government body to assess companies like houses are currently assessed. Sounds expensive though. We'd need to raise taxes, which is probably a good thing anyway
It wouldn't involve raising taxes as much as it would involve collecting taxes in the first place from billionaire assholes hiding their wealth. This is a recent problem and is easily fixed.