Futures is a negative transaction. Not only will there not be too much money in the market, but the handling fee will be less and less. Companies with Chinese prefix will make money in the name of arbitrage and hedging, and most of them will eventually lose money.
But on the whole, it is better than casinos, because the government doesn't make money directly in them. It's just that a few guys will get an hourly allowance, which is much better than a casino that eats people and doesn't spit bones. .