When you look at $BTC on a weekly basis, you will find that BTC's price is still at a high level, but the fluctuations during this period have worn down the altcoins to the point of being unresponsive.
If the current decline is just the beginning, then think about how much further the altcoins you hold might fall? So the bulls pray that the position of 100800 cannot be broken; if it breaks, the altcoins will have endless declines, and a market cap drop of at least one third is not a problem. I see many people placing their buy orders for ETH around 1880, and over 90% of people have lost confidence in the market for the next two months.