Listing BTC on big exchanges will bring more investors -> price increase
I agree with your opinion, Bitcoin is created to be the currency of the future not for commodities, but what is happening now Bitcoin is like a commodity trading, but unlike that, Bitcoin prices are soaring because of very high demand, while bitcoin is created with limited inventory, I think we should not be afraid of all the news that has spread, Bitcoin has survived nearly 10 years and during that time Bitcoin keeps growing and growing for the better.
And you can´t really centralize BTC with futures (trading with futures is centralized but it doesn´t disable decentralized usage of BTC), you would have to either control a majority of nodes and/or miners to have a serious impact.