I know it is an unconventional way to describe viruses, but would it still be technically correct?
In genetics, genotoxicity describes the property of chemical agents that damages the genetic information within a cell causing mutations
While some viruses tend to cause mutations, most don't have such a strong mutagenesis effect. As such, they are not really genotoxic. Also, even if a virus is genotoxic, one should definitely not reduce the activity of a virus to its genotoxicity. A virus has a life-cycle and is able to reproduce. It is clearly more than a simple genotoxic chemical agent such as metal chromium.
So, in short
- Reducing viruses to their genotoxic effect would be a misrepretentation of what virsues are
- Most viruses don't have a strong genotoxic effect and therefore you can not make the claim in the general sense.