The futures market is the only thing that allows you to lock in a price to buy something 12 months from now at a reasonably consistent price. How is that a hindrance?
The existence of the futures market does not prevent a copper provider from entering into an exclusive sales contract to sell 12 months from now to a specific consumer. However, unless they match the current 12 month contract price, one of them is taking a bad deal with what they can get on a much more liquid market. Additionally, their counter party risk is now much more significant because they are tied to one other party.
Maybe you could actually offer something specific about how “the speculation market is more of a hindrance than a help”?
So far whenever I see this, it’s people who don’t like that the price changes on them but their solution is to remove participants from the market to a point where it is so illiquid the lack of trading looks like the price isn’t moving.