It will never become safe haven because of all the crap that is going in crypto markets. Tethers alone would keep any sane person out. Granted in some parts of the world cyptos are the only option due to the lowest barrier of entry. But if one has a choice, no need to touch it.
Gold you can melt down and turn into a spear to protect yourself so even if civilization ends, it's useful, Bitcoin isn't real therefore has no value and isn't any way shape or form stable.
It also means, bitcoin is useless without the internet. Believe me, the internet will not last forever. Gold can survive eternity.