What he wrote and what actually happened is entirely different. What actually happened is that SEC tried to get hold of a few Cryptocurrencies. They started their own investigation on a few coins like Solana, Cardano and Matic and eventually Coinbase, Robinhood and a few cEX stopped trading these coins therefore US has indirectly stopped people from trading Cryptos.
So in your words, Bitcoin, Ethereum and the likes are not cryptos?
Op's title is more like a clickbait, and now he has even been permanently banned from the forum. The US didn't ban altcoin trading. SEC is just targeting a few coins/tokens they believe to be securities.