Many have already tried and many have already claimed Bitcoin was going to be destroyed at some moment, but it has never happened for real.
Then the question arises, who have the ability to destroy Bitcoin? Ironically, the answer may be only the person who created it: Satoshi.
It's curious to think about the scenario where the creation goes too far away from the initial purposes of the creator, so he ends deciding to nuke this.
And how can this thought be understood and applied to reality? Of course Bitcoin won't cease existing, but as things go more and more centralized each new day, empowering and giving control to the groups who have been ruling this world since always, Satoshi can compromise Bitcoin's credibility, by for an example, dumping all his coins on the market at once.
Apparently, this conception has been a wide spread fear in the heart of many concerning the future of Bitcoin.
My opinion here is, Bitcoin is designed to be decentralized, resilient and censorship-resistant network.
But we must understand that several factors could practically destroy or undermine Bitcoin existence,
such as utility, and value.
More over, these dangers as ws can see ranges from technical vulnerabilities to existing legal framework actions and market activities.