As I said yesterday, Bitcoin lagging and failing to move over $12,000 might hold back everything else, and that's what's happened. Bitcoin moved right up to $12,000 yesterday but failed to break over that resistance, and now the entire crypto space is down with Ethereum reversing it's gains from yesterday.
Some conspiracy theorists have suggested bitcoin price today is manipulated by Wall Street. In particular it's said that the bitcoin futures market at the Chicago Mercantile Exchange is used to force bitcoin price down without actually needing to buy or sell any actual bitcoin (a similar claim is often made about gold and the gold futures market). I don't know if there is any truth to that, but there could be something to it.
The entire bitcoin market is small--half the size of just TSLA stock alone. Before the futures market, bitcoin price was set by the relatively small amount of bitcoin trade flow across the various bitcoin exchanges. Now there is a highly leveraged parallel market in bitcoin futures contracts that interacts with bitcoin price. That parallel market does not use bitcoins and is not constrained to the actual bitcoins being used to set price on the exchanges. So you have a market with a leveraged effect on bitcoin price completely detached from bitcoins, with the ability to totally dominate the small actual bitcoin market trade flow--sounds like trouble. And the kicker is a very odd coincidence--the EXACT DAY the the futures market in bitcoin went live was the exact day bitcoin topped at around $20,000 and the entire crypto space has been in a bear market ever since.