This is not new again, Gary Gensler has been saying this for a long time now, many cryptocurrencies are securities and crypto is highly speculative and risky, but many people know this already and most assets and investments are also risky.
BTC is surely not a security, and it has its usefulness in society, different from many coins that survive for a very short time only, so people buying crypto should go for coins that are useful and have real demand that is not from hype alone.