> prevalence of zero sum games like crypto and day trading

Calling day trading “zero sum” seems like a huge stretch. To get the sum to be zero you need to include everyone involved in the market: institutional investors, hedge funds, etc. Somewhere between 87 and 95 percent of day traders lose money.

There's so many of these absurd "investing" trends where financially illiterate people are getting tricked in to buying in to schemes where the only way to win is to be one of the insiders. Or more recently, the Counter Strike skin "investing" where a single change from a company can wipe out all of your investment.

Had you bought actual regulated shares you could sue the company for deliberately crashing the value. But since video game skins are not a real investment. You have no protections at all.