I think, one of the reasons for the market to misbehave is the rules changing.
Bitcoin used to be the very best tool for a) payment and b) value accumulation.
Now, if I want to send someone money, I'll choose a coin with smaller commission.
As for accumulation... It consumes too much energy, and there are countries that ban Bitcoin because of that. Already. So... would you invest in it for 100 years?
It is like dinosaurs: they were big and nasty, till small and fast creatures pushed them off the way.
This always been part of the reality which theres nothing on this world cant really be replaced or cant be removed to its place and bitcoin isn't on the exception on such events.This is why when you are targeting for a 100 year old security or investment then there are lots of choice either government-backed or total decentralized thing.It does depend on the level of risk you can handle on.