I think we should get rid of the word "preference," in this context, altogether.
"Preference" implies that something is an active choice. Who you're attracted to -- whether it's sexually, emotionally, physically, spiritually, intellectually, or cerebrally -- is NOT a "preference."
Consider why so many of us LGBT+ people object to usage of the term "sexual preference"...because it's misappropriated by heteronormative people who want society to believe that Queer people are attention-seekers or demanding "special rights."
A "preference" would be feeling as though you're in the mood for Bleu Cheese salad dressing, but settling for Thousand Island (which I still like to eat -- just not as much as Bleu Cheese) because the restaurant happens to be out of Bleu Cheese dressing.
We should also stop conflating who someone is willing to date -- or willing to consider as a significant other -- with inhumane behaviors/actions (such as assault, homicide, or verbal harassment).