in a game that already has romance options, adding a same sex romance option is not taking away bandwidth. and i cannot imagine how it would "soil" an entire franchise. just don't choose the same sex romance option if you don't want to. easy.
Karens aren't misunderstanding how to mind their own business or live-and-let-live; they are trying to enforce what they see as (or wish were) social norms and don't give a damn about the perspective of the folks on the receiving end of their chirping.