Idk if I understand you exactly but you're trying to ask if bitcoin will survive without blockchain? I think it's too obvious to answer that since we knew these two works together and bitcoin depends on the underlying technology on what blockchain have.
So the epoch of blockchain has been born and people see the potential of it and how it can change one thing, and now everything that we can think of can now put on the blockchain.

Not at all but some country like Iran ban the use of any crypto currency since they will launch their own. Likely, bitcoin won't just die because of that.