Why they would think they could make a logical connection, I don’t know. Or maybe I do know. Atheists have long held sex perversion to be no big deal, since if there’s no God to have created us and to tell us the right way to use our bodies, it’s wide open, and conveniently they often fear population will quickly outstrip the earth (based on a world view which gives humans little or no credit for ingenuity which can transcend such concerns).