The danger is a whale can buy short futures. Then he sells all his bitcoin. The price crashes as other sellers exit, he covers his shorts and buy back all his btc. This is how markets are manipulated with futures. And it's about to happen with btc. Bitcoin has been free of wall street manipulation until now.
What you describe is just trading and occurs in all free markets. It has been happening since the very beginning of cryptocurrencies as well.
I respect people's predictions, projections and even the spread of FUD as they are all part and parcel of an open market.
Exactly, true of all open markets. The only way to stop it to replace a free and open market with a planned centralised market. This is the complete antithesis of everything Bitcoin stands for.