Yea I am worried too. The Bitcoin decline started at the end of last year when Bitcoin futures were taken in use. Futures can be used to manipulate gold, oil, silver, fiat, wheat and what ever, so why not crypto. The Futures do not bring any money to the commodity they represent, so no wonder that happens.
When the Bitcoin has declined more than the alts have been able to increase, they have lost too.
So what do you think what the Bitcoin futures have to do with the decline?