Bitcoin is proving to be extremely strong, practically "immune to death". If you look at Bitcoin Obituaries, people among the most influential and powerful in the world (let JPMorgan CEO be one example) have been unsuccessfully trying to bring it down. Even Hearn tried to destroy it and, despite all the incredibly negative promotion worldwide, Bitcoin's price went down a little only to (slowly) get back. If not even one of its creators was able to kill it, who will?
Bitcoin is not immortal, no, but it will live for years for sure, don't think that it will die in next 50 years atleast? Bitcoin now is too popular, people wouldn't let bitcoin die for sure