I think absolutely blockchain! Because bitcoin is based on a blockchain 
We have already entered the era of blockchain although many of us do not yet realize it. These technologies will bring great positive changes to our lives. Meanwhile, I also believe in Bitcoin.
blockchain wont be discovered if not because of bitcoin so let say if bitcoin will die , for sure the blockchain will also died . but that wont possibly happen because bitcoin is too useful to be forgotten by the public .
so my answer to the op's question is both . blockchain technology and bitcoin will remain forever .
many don't want bitcoin but everyone wants blockchain tech , blockchain tech is what makes bitcoin so special without blockchain bitcoin is just a currency
lol are serious ? you dont know what you are talking about dude . blockchain is not even popular , so how can you say that everyone wants blockchain over bitcoin ? although bitcoin wont be possible without the help of blockchain technology .