I challenge you to write out what scenarios you think reducing market participants will solve. Historically it has 100% so far been highly illiquid markets with huge price spreads, which is terrible for both sellers and buyers.

What you’re suggesting means a farmer selling wheat futures for delivery a year from now needs to be at the market at the same time a bread maker is looking to buy wheat a year from now. That basically doesn’t happen because the bread maker doesn’t need that level of forward looking price stability.