Because of huge loss in investing on bitcoin people are loosing their trust on crypto, and big players or holder are playing with small holders i think that's the main reason
That trust won’t be hard to gain back when the hype starts and then, they will keep doing what they know how to do best which is to join FOMO. The market is red, so what ? The coins are terribly down, is that new ? It is normal for a market to experience a huge correction and we see it in every other market outside cryptocurrency every time, but this simply is always a time to invest into these currencies so that when they recover, you will be swimming in some good profit, but people certainly won't just learn.
There could be thousand reasons why entire crypto market is down from last year's December. But the core reason must be, all of us. Yes, like most other market, crypto-market is also driven by supply and demand and we are the root cause for creating supply and demand.