I know it sounds like an impossible question but just imagine for a moment if Bitcoin suddenly stopped existing What would happen to the markets the people who invested their savings and the businesses built around it Would another cryptocurrency quickly take its place or would the whole idea of decentralized money lose trust
Your question is not logic at all.
If in your question and assumption that Bitcoin stops its existence, what will happen with Bitcoin market?
If there is no longer existence of Bitcoin blockchain, there will consequently no Bitcoin market. Logically it would be like this as Bitcoin market is a product of Bitcoin blockchain existence.
Will Bitcoin blockchain dies?
I believe it will not die as Bitcoin blockchain is decentralized and nobody can kill this blockchain to death.