I am convinced the solution to the varroa problem will be based on genetics. The Arnot Forrest bees show us this.

However it will take years to develop a strain, this research has been ongoing for many years at this point. 10 years of efforts and we have not even found a way to chase a mite out of a hive. Much less develop a resistant strain of bees.....

Lots of folks are working on many different vectors, I don't see a single obscure source of a cure/fix. I expect the victory will be a collaboration of different vectors.

Any cure or fix will be widely announced and monetized. And the commercial guys will get them first, because they can afford them.

The grass is always greener on the other side. Enjoy what you have.