I'm going to give the original poster the benefit of the doubt and assume he is not a troll, but just an innocent and presumably young theatre fan.
Jazzhands3, in casting of the role of Elder Price, you look to see if an actor 1) has specific abilities in talent, and 2a) is the type you see in the role, or 2b) if they are not the type you are looking for, will they still be a good fit in the show without doing the show a disservice?
It is a coincidence that all of the actors playing Elder Price are all gay. And it doesn't matter. There are plenty of actors who play a role that does not share their own gender, race, age, religion, or sexual orientation. Eric Stonestreet is straight but plays a gay man on MODERN FAMILY. David Hyde Pierce is gay but plays a straight man on FRAISER. Casting them against their own sexual orientation did not matter because they are believable in their roles.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle