Maybe maybe not but people have always predicted the demise of Bitcoin, eventually someone will be right, but just because someone guessed right didn't make them some sort of prognosticator.

Considering that the markets have been taking a massive beating across the board the reason for bitcoins recent drop isn't quantum.

I don't think there has been any recent news that would have resulted in the recent collapse of bitcoin's price. Quantum computing may ultimately make bitcoin infeasible, but it's not driving the price right now.

It's not exactly clear what is driving the price drop now. It seems to be a bunch of smallish factors, magnified by the usual bubble market feedback effects.

For any other security, you'd say that it would eventually recover after a correction. For BTC, it's not really a security, so it's hard to say where it goes from here. It's based solely on collective buy-in.

It will take years until there is a quantum computer that can break bitcoin.

Once it a fast enough quantum computer appears, they will cheat and hard fork and change the protocol to a quantum resistant version instead of just sitting while the bitcoins disappear.