Ethereum scammers are in full desperation mode now. Nobody is buying their Eth pump so they keep doing orchestrated BTC dumps to temporarily lower BTC price, make believing that will make people want Eth instead but there are just no willing buyers of that scamcoin.
That does not make any sense. BTC is still many times bigger market than ETH - suppressing BTC would involve an order of magnitude bigger loses than anyone could gain on the manipulated ETH.