The Quantum Threat to bitcoin is already being dealt with. Don't use quantum computing to FUD Bitcoin. No Hard Fork Required.

Github repository: https://github.com/cryptoquick/bips/blob/e186b52cff5344c789bc5996de86697e62244323/bip-p2qrh.mediawiki

This proposal aims to mitigate these risks by introducing a Pay to Quantum Resistant Hash (P2QRH) address type that relies on post-quantum cryptographic (PQC) signature algorithms. By adopting PQC, Bitcoin can enhance its quantum resistance without requiring a hard fork or block size increase.

Admittedly, I was only able to read and understand about half the content because I started studying cryptography a couple of months ago, and I'm familiar with the theory behind cryptographic algos.

The important part is that people are preparing for the post-quantum world in advanced. In 2021, there was a BIP to add taproot to the bitcoin blockchain. This was implemented via "speedy trial" which required consensus from 90% of all mining pools. It was passed / integrated after about 4 weeks. Do you guys think they wouldn't agree to do the same for post-quantum cryptographic algorithms?