>>20681426No, this is basic to the theory of evolution
You said sexual preferences have "nothing to do with evolutionary advantages," but they're a core aspect of natural selection.
>The likelihood of these traits being 'selected' and passed down are determined by many factors. Some are likely to be passed down because they adapt well to their environments. Others are passed down because these traits are actively preferred by mating partners, which is known as sexual selection. https://en.wikipedia.org/wiki/Natural_selection 