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The first bullet is the only one which makes the claim for the Real Life person the character is based on to be gay, and it clearly states there is no proof. I'm having a hard time believing that any gay reference was intentional there.
Seems more likely the abuse made him asexual, and the movie probably didn't force the issue.
I always kinda operated on the assumption he was. Ambiguously Gay is a pretty fitting trope.
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How well does it match the trope?