I don't support this idea . This point view is superficial and erroneous. ICOs have a very positive impact on the development of the crypto industry, all the negatives come from scammers who pretend to be honest projects , but disappear with money after the end of the ICO. It is they who create a bad reputation for a crypto and kill the market.
I agree with your opinion, the decline in the market is currently caused by the actions of scammers, I hope that in the future more regulations on ICO will be tightened to reduce the space for scammers.