that is not how quantum computers work and i am starting to wonder where do all these so called "experts" come from these days. it still wouldn't be a matter of seconds even if a much more powerful computer was invented and on top of that a much faster algorithm to solve the elliptic curve problem. not to mention that we are decades away from such computers!
Aside we are decades away from the creation of the mentioned computers, the crypto currency market is getting broad day by day and what most of the expert are doing this days is making the public notice them or say some false things about a project which might hinder their own project which is yet to be create just like the JPMorgan does to Bitcoin before the birth of it own stable coin.