A theory I'm kicking around in my head lately is that maybe the reason Hydroxychloroquine and Ivermectin works so well in curing viral infection is because what is attributed to a 'virus' is in fact disease brought about from a parasitic infection.

What if the reason that no one has successfully isolated any virus is the simple fact that viruses don't actually exist, but are simply an expression of some type of genetic material from parasitic organisms, that causes disease in the infected host?

I haven't found anything on this theory online, so this is a call for input from my fellow theorists here in the hope that any of you guys have come across useful studies or literature on this subject.