Of course she would. That's how her family raised her. She's essentially a very tan white woman. If you look at her instagram you can tell that this is true. I don't see a problem with it. Madison is clearly NOT a black woman, and neither is any biracial. They're just biracials.
Its so problematic when you take this stance, because race itself is a social construct... there isnt any scientific classification for 'human races'
So many African Americans are not of 100% of African descent, so really how can you start deciding who's black and who isnt?
A biracial person isnt black, or white.... ok what about a person who comes from a mixed mother and a black father?
My step brother is half black and half white and looks like the rapper Logic, he still identifies 100% black... mostly cause my dad raised him and he grew up around me and my brother etc... so i guess yeah its up to her if she doesnt want to identify with a race... but im gonna silently judge for that shyt lol.