pansexual: attraction to all genders. no exceptions, binary people, agender people, genderfluid, etc etc etc.
bisexual: attraction to two or more genders
ABSOLUTELY DOES NOT EXCLUDE TRANS BINARY PEOPLE!!!!!
bisexual just means attraction to more than one gender but not every single gender.
you could be attracted to any combination of genders, not necessarily just male and female, could also be male and genderfluid, or female and demi girls, or male and agender people.
I’m bisexual because my attraction seems to be binary people and demi girls or other more feminine nb genders, but I don’t tend to be attracted romantically to other genders.
bisexual fits me best, and I dislike it when people who aren’t even bi try to define it for me and tell me my own attraction is wrong