This is just a myth. To be honest Bitcoin and Blockchain are separable. Blockchain can sustain without crypto but crypto cannot without blockchain.
In recent times Bitcoin moved from 7k range to more than 10k may be with the news of China president talking about blockchain. Then people were saying that China is positive towards crypto but things were not that good. And now things are on the same page again.
So burst this myth that where blockchain is Bitcoin will also be there.
As we all know it, China is creating their own cryptocurrency and they will be releasing it very soon. I’m still confused on what’s really the status of Bitcoin in China, I’ve heard that it is legal but the banks have been issued warnings to stay clear from handling Bitcoin.