"jab things into your body" is not the only such vector. There is also "having things jabbed into your body" (a subtle but important distinction).

Your post implies that if someone is infected with the HIV virus it's their own fault. This assumption is toxic, and makes people more hesitant to apply resources towards trying to treat and cure people with this disease. It's like telling a person with lung cancer that "It's your own damn fault for smoking" when it is perfectly possible to develop lung cancer without ever having a smoke.