manipulation is possible if you are a trader that holds enormous amount of token supply you are able to move the market whales can easily control the market because they have large amount of coins.
If the market was being manipulated in some ways, there there is a chance that the cause of the red tide are being controlled by the whales and the other big investors. If is true then, if they attract more traders them will decide again for another sell off.
in my opinion that is impossible because I know if the market is manipulated by many people who are confused to make money and so now with the bear market the crypto market has not come back and has not been able to regain its stability as many people are waiting for the market again