Bear market doesn't happen because there is futures, bear market is a natural trend in any markets including bitcoin. But you also have a point here, there has been a lot of market manipulation that is taking advantage of futures.
In fact over the past weeks I have noticed spikes in number of shorts whenever price starts rising up (not falling!) which will then prevent that rise. Good news is that even though the amount of shorts is increasing their effect is drastically decreasing:
https://i.imgur.com/8wf9auU.jpgThen is it possible that someone like, perhaps Elon Musk, or Michael Saylor to have hedged their long postions by shorting the top through Bitcoin futures? Because why was Elon Musk very happy to FUD Bitcoin to crash when he has $1.5 billion in Bitcoins held through Tesla?
It is very likely that he did hedging and even sold futures more than twice. By publishing news, create market panic and reap huge profits.
There is also a possibility that he sold some bitcoins at 60k, and now he bought them back after falling to earn more bitcoins.
