I agree that it would come for bitcoin to be a safe haven but I doubt your term using absolute as safe haven. If we are going to argue which safe haven could be the absolute safe haven then it would be gold, no statement needed further.
There are several reasons why bitcoin is (potentially) better than gold as a safe haven asset. This has been discussed many times, but as one example, bitcoin has a fixed maximum supply, gold doesn't. You can't say once all the gold in the world is mined then that is the maximum, as we will probably be mining asteroids for precious metals before too long.
it's debatable whether a fixed supply is superior to predictably low and market-controlled supply---what gold has. fixed supply may end up making bitcoins
appreciate more than gold, but that doesn't necessarily mean it's superior as the money underlying an economy.
i've been hearing about the specter of asteroid mining my whole life. i'll believe that when i see it.