I am a not a sir.
I'm sorry, I have a cold.
Just as hominids evolved into other species such as homo habilus and homo sapian, viruses evolve into other viruses that are more deadly.
I don't think anyone has any trouble with this concept. Humanity has understood this for millennia (although not at the virus level).
I think the sticking point is when a virus becomes something that is not a virus.
Shalom.
"I think the sticking point is when a virus becomes something that is not a virus."
Oh, actually, that has probably happened many times. We carry what are probably ancient viruses in every one of our cells. It's amazing.