No. It doesn't. The fact is that we don't know. The 'academic' research that claims Alexander was gay/bisexual is about on par with the 'research' that claims Jesus was gay. It is poor science blended with a gay activist agenda.
It is true homo/bisexuality was more common in ancient Greece. Alexander may have been, but there is simply no compelling evidence of it. We simply don't know.
http://www.nypost.com/entertainment/34381.htm
Here's a summation of the "evidence" of Alexander's sexuality:
http://www.pothos.org/alexander.asp?paraID=42
Imagine if Hollywood directors and actors had shaped history.
People would have wasted most of their time figuring who should do who and how,
and the only thing humanity would have accomplished would be extinction by venereal plague.