Why not? Unless rape is involved it is Voluntary.
I've always said that it was called Acquired Immune Deficiency Syndrome because in 99% of the cases it is actively ACQUIRED.
The problem with that is that there are downstream externalities to consider by a degree or two. Now that sodomites can donate blood "if they've been 'good'," there is a much higher risk that someone is going to receive tainted blood from a new infection that evades the testing done for blood donations.
If we could ban gay men again from donating, I wouldn't care if their destructive habits put them in the target without getting charged.