AIDS is caused by the HIV virus. Many people do not understand that the act of homosexuality does not cause AIDS. The only disadvantages there is to the "improper sexual misconduct" is that it provides an easier route to spread the virus, provided that one of the participants is infected by it. That also says the "proper sexual conduct" does not protect you from contracting the HIV virus, thus this statement has no scientific value and is only based on her belief. Also, the HIV virus is believed to be originated from other primates. Regardless whether the fact to this origin of HIV virus is correct or not, we do not simply "create" a virus in our body from nothing. Therefore we cannot blame the improper sexual misconduct to be responsible of AIDS. Maybe one can argue that by eliminating this act can slightly subdue the transmittence of this virus.