You've obviously never taken statistics. Let me give you a crash course as it relates to your false assertions.
In statistics, a subset of a population is called a subpopulation. Different subpopulations have different properties. For example, the homosexual population (e.g. people who engage in homosexual acts) of the U.S. is a subpopulation of the nation's population.
Though the homosexual subpopulation comprises only about 1.7% (see Gallup polling data) of the nation's population: the CDC reports that the homosexual subpopulation has the highest rate (e.g. per capita) of HIV infection and state that over the course of their lives fully half of all people who regularly engage in homosexual acts will become HIV positive. Their studies indicate that the rate of new HIV diagnoses among men who have sex with men (MSM) is more than 44 times that of other men and more than 40 times that of women. CDC studies also show that the homosexual subpopulation has inordinately high rates for STDs and hepatitis B.
Obviously, this subpopulation represents an unacceptable blood donor risk to the nation's blood supply.
Now what you've done, is make a false assertion that the far greater subpopulation of heterosexuals (e.g. 98.3%) must have more cases of HIV infection than the subpopulation of people who engage in homosexual acts (e.g. 1.7%) but you're wrong: they don't.
The CDC's 'Diagnoses of HIV Infection, by Transmission Category expanded' clearly shows that the 'Estimated Number of Diagnoses of HIV Infection' for the homosexual subpopulation is much greater than the heterosexual subpopulation.
For example, in 2011 JUST the male component of the homosexual subpopulation had 30,573 new HIV infections while the entire heterosexual population (including all heterosexual IV drug users) + homosexual women combined had only 13,402 new HIV infections.
Your false assertions are patently untrue as always.
So, the majority of HIV infection is carried by white gay men, black people in general, and heterosexual women of all major races. That's right, heterosexual women, collectively, in America, carry as much HIV as black gay men. So should heterosexual women be disallowed to donate blood?