You hit the nail squarely on the head, Keith. Don's orientation is as
vital to understanding the man and his works as his birth in Oklahoma
and his contacts with so many people who influenced him. To say his
possible bi-sexuality "tarnishes" anything is as foolish as saying Walt
Whitman's sexuality diminished his work.
More than likely, Don's bi-sexuality enhanced his outlook on life and
opened the world for him in ways not possible otherwise.
Given the era in which he was born, when bi-sexuality was
an "abomination" to the naive and while he obviously didn't muffle his
feminine side until his older years, it may be one reason why he seem
to morph from the rogue, lively and fun to read poet to a devout
Christian - and a totally boring writer in my eyes - when death was
closer than life. This subject definitely worth pondering as part of
the whole. Frankly, I don't think we need much more evidence than that
photo you once published, Keith, in which he was posed as a young,
rather mythical god-like fellow - nearly naked. That was typical of
that era and that lifestyle and settled the question for me on that day.
Just my considered opinion......