Making it into another "type" like that implies that people who aren't "demi" are automatically attracted to everyone of their preferred gender.
If you're not one person, though and you're dynamic, as well?
Also people's sexuality can vary across race, body build, personality, identified gender, abstracts, lots of things. I think the above poll just rounds things up too much. I don't think anyone can be attracted solely to a specific sex unless they are reductive in a social or biological sense because the brain is ambiguous and reliant on mental reward. If that weren't so other species wouldn't have evolved to have unusual methods and mankind like other species is always evolving with each individual a new tangent from the common ancestor. How can you be attracted to the whole sex if you ae attracted to one member of the same sex but not another? That alone tells me that sexuality is far more complex than being gender biased and can vary from how we see certain individuals but society/pheromones may tell certain people / other species to see that you should be biased. There is no perfect form so no perfect adherence to standards like sex and that creates subjectivity. If no one, say, straight was capable of attraction of the same sex then how is that person capable of subjective envy of appearance and thus possessing a desire to apppear like someone else even without any standard of appearance that is appealing to any one member of the opposite sex? We should also note that people will reject others based on functional fixedness, that means a person would avoid someone who appears attractive purely based on their fetishes or culturally subjective clothing. Fixedness can be fluid and even lacking which I would describe as what can be called pansexuality, which could also include objectum.
I can respect that the defined sexualities help certain people find a certain gender bias they like overall but that's not how I work, at least. Much evidence shows humans especially are overall ambisexual even a single person isn't entirely made up of a single "stereotyped" sex's characteristic genetics.
So while it's possible by abstract perception to feel like you belong to the above categories, I can deduce that I am more complex than the categories above.
I would identify most closely as polysexual, perhaps also semi-demisexual.