While this is technically correct, due to the way crypto investors currently get into and out of cash, the conclusion does not follow. It assumes that there is no differentiation between the coins, and data does not support that at all. There might have been a day when different coins were essentially the same, but as the space has evolved so much in the last few years, some superficial and very fundamental differences have emerged. If you use market share as metric, Bitcoin is "dying" but crypto is bigger than ever for example.