Bitcoin is dying because the general public has just lost interest in it.

It is not just the price that has collapsed it is the excitement in the idea of cryptocurrencies.

There are a few graphs from google trends here:  https://veggiecoin.wordpress.com/why-voin-is-a-better-investment-than-bitcoin.

The future of cryptocurrencies (if they have a future) may lie in niche coins: cannabis coins, solar coins and so forth. The bitcoin protocol is not suited to a single monolithic coin.