You have no idea the research happening that could save your own sinful hide or those in your family. Whether it's from controlling, killing or preventing but also potentially utilizing HIV in treatment of other illnesses.
Truvada is a combination of two medications already used in HIV treatment that happens to have a preventative effect. It's not without side effects and must be taken daily so there's enough of it in your body for protection if you are exposed to HIV. It costs thousands if you paid out of pocket but cost is offset by a free copay card from the maker Gilead.
I do wonder, do you have the same contempt about "wasted" tax dollars on treatment research to prevent cancers and other diseases brought on by things like smoking or drinking?
You live a perfect life, without sin. We get it. /s