Then why is it classified a virus?
You’re asking the wrong question, since there is to this day no virus to classify. Those that seek to expose this fact are instantly attacked and destroyed.
“HIV” the virus is fiction. what they call an antibody to this imaginary virus has never been shown to cause the disease. No person with this supposed antibody that doesn’t use drugs gets the symptoms, while there are millions that have the symptoms of AIDS, but do not have the ‘antibody.’ (but they do use drugs)