Citation: http://edition.cnn.com/2014/05/08/tech/gaming-gadgets/nintendo-game-gay-protest/index.html?hpt=hp_c4
I think it's a vertual game which imitates the world of the hetero-sex interaction. So, to avoid the criticism from gender-free advocates, Nintendo should add the sentences saying "This is not the world representing the real world but the vertual world where hetero-sex interaction is only accepted."
I think it's important to allow homosexual people's rights to have relationships with the same sex. But, it will not be mandatory to expand its concept to the vertual world.
