@ Pretty much everyone in this thread: This is an important distinction.
It’s not the same Green Lantern as the one Reynolds played, aka Hal Jordan. It’s a different character, from the 1940’s and Earth-2 versions, the first Green Lantern, Alan Scott.
I think a lot of people forget that “Green Lantern” isn’t one character: There have been seven completely different Green Lantern characters.
To judge the motivation for making Alan Scott gay, it’s contrary to point to take into account Hal Jordan’s character. The success (or lack of) of the Green Lantern brand is fair game, but we must realize they are different branches.
Hal Jordan has had an ENORMOUS amount of romantic interaction with women. To be fair, I’m not aware if this is also true of Alan Scott, or if he was less involved with them.
And I am curious about the motivations of making him gay. I doubt the original writer (being from the 1940’s) wrote him intentionally as being gay, but did the newer writer honestly interpret the original character as gay? Did he naturally come to the realization that the new character was gay when he was creating him? Is it, like others in this thread suggest, a publicity ploy? A combination of the above?