It makes sense, because in many places in the West, anti-LGBT rhetoric is like a huge and longstanding cultural project. A significant number of Christians believe that if they treat enough gay people with respect, God will get fed up at some point and genocide the entire society. If I was an American evangelical Christian, I would believe that one gay person walking around minding their own business is a greater threat of human misery than infinite Holocausts.
In some other places it might be a lot shallower, like just a vague belief in traditional gender roles and a deference to the word of their geriatric asshole relatives.