Get over it, folks. Find something real and relevant to discuss. It's quite real and relevant. Suddenly, fans of the characters they loved have been enlightened with a nugget of information directly from the author. It's art imitating life as we see on a huge international level, people struggling to reconcile how this particular piece of information may or may not change their opinion, not only about the character, but the entire series of books and films. And the brilliance of it all is the fact that without this information, it doesn't change anything since the books have all been written and the series is finished. Anyone who was in doubt or denial about Dumbledore can no longer speculate or say, "well, I don't think he's gay!" It's not like all those millions of readers can un-buy the books.
The character does not have to be real to have relevance. The fact that he is fictional may actually lend
more relevance to those fans who don't believe they have ever known anyone gay and are suddenly posed with the question of whether or not their opinion of or affection to the character has changed in light of this recent news.
What if tomorrow, the great granddaughter of L. Frank Baum came out with a revelation that Dorothy from "The Wonderful Wizard of Oz" was a lesbian? Only if it were documented by Baum himself and supported by evidence that Dorothy's sexual orientation was pivotal to the plot could it even come close to being a comparable analogy. Rowling was very specific as to
why Dumbledore was gay, why it was not revealed in the books, and why she had not previously revealed this information.
"What can you expect from a bunch of seitan worshippers?" - Reginald Tresilian