Current situation proofs that the best save haven is gold, unfortunately
No, Bitcoin and crypto as the store of value aren't dead just because they had a super shitty day. In the coming months the world will see what anti-fragile means.
Statements like that , proves you don't really understand what store of value means.

Items that fluctuates by 15% to 50% are not a store of value.
Go to the race track and bet on a horse, that is a Gamble not a Store of Value.
Bitcoin is a Gamble! You might win, You might lose. And their are a lot of losers right now.