Not them but you are replying on a thread talking about how it isn't safe in the longer future. That context was already built.

Quantum computers absolutely exist and are commercially available. They're just not very useful at the moment.

It get exponentially difficult to add more qubits so it's not a given that we will be able to build one large enough to be a real threat to modern cryptography.

“Quantum computers that break diffie hellman as easily as RSA”, where “easily” means “not at all”, do exist.