Cryptocurrency is like a water in a bowl, the water moves but the bowl determines the flow
We crypto users are the Bowl. The reality of life is do you do the right things with the water (altcoins, bitcoins, Etherum

)
This simply means only crypto users causes the bearish moment and the bull run
Make the right decisions
To be honest you've got it almost correct. To be exact, the ones who's causing the bearish or bullish market are the manipulators of the market, who are owning a large portion of the market of crypto.
The emergence of new and new crypto-currencies is a common phenomenon, when non-viable elements are eliminated in the operating mechanism, and more perfect ones come to take their place.