If HIV doesn’t cause AIDS, then what does?
The great majority of AIDS victims in the U.S. are gay or drug users or both and male victims greatly outnumber females with AIDS.
This is highly untypical of contageous diseases.
AIDS is a collection of diseases that result from a damaged immune system. Just the sort of problem you have with long term drug use and unprotected sex that is the norm in the gay community.
The only proof that HIV causes AIDS is based on a correlation between a positive test for HIV antibodies (not HIV itself) and one of the many AIDS defined diseases.
Lots of people test positive for HIV antibodies. But AIDS deaths are mostly gays and drug users and male.
Ask yourself why that would be. Ask yourself what other virus acts like that.