This is not the case, and this sentiment is usually caused by a long-term bear market. But you must know that bitcoin cash has a strong strength, maybe they see the future market rather than the current market. The failure of cryptocurrency this year does not mean that the future will fail. The market may once again shock you.
You are right, when the market value goes down lot of them take advantage of this and give negative feedbacks on all coins. This is really not fair at this moment having patience is the key to save our money. Bitcoin cash is in the top 10 coins it has a good growth in future.