As a proven Proof-of-Concept, it can never be destroyed.
Unless you can destroy Mathematics.
Say that again dude, it's like some people feel good by badmouthing Bitcoin and ridiculing it without any tangible reasons. A small dip and they start talking doom, it's been on going for sometime now but each time they get hooked and bitcoin proves them wrong.
Its always been a great advantage for some people that they can create news and make coins pump or dump with just a few lines of text. Always beware of the fake news spread by anyone.
That is something that people are simply incapable of in this day and age and it has been replaced with the honed and sharpened skill to attack your people and other things at will, fast and hard. Anytime that a person finds themselves seeing any type of fault in themselves, it comes out like a superpower in a movie, attack something else, now!