If you're saying that you think the government spends a disproportionate amount of money on AIDS research, that's a reasonable argument and there's evidence to support it and, frankly, I agree with you.
If someone wants to argue that the government has no role in medical research, that's certainly a legitimate principled libertarian position.
Others appear to be arguing that because the biggest factor in transmitting HIV/AIDS in the US is anal sex, followed by shared needles, that there shouldn't be any research into AIDS. That's where I differ.
Spend half the research money on some programs that change the behavior, or, better yet, let the consequences for the behavior run their course,
and you’d see much better results in reducing the incidence of AIDS and HIV.