Thankfully we have come a long way in the past 30 years. Not nearly far enough in my humble opinion, but still light years from our basic understandings years ago.
We now know there is no difference between heterosexual blood and homosexual blood and many courageous Gay individuals have saved many straight individuals lives with the gift of blood.
I believe all life is sacred regardless of race, sex, religion or sexual preference and physiologically and anatomically don't acknowledge any difference. Hope that answers your question if in fact you had a question.