Some clear words

Tend to agree on this, actually it’s been around since before recorded history.

I tend not to agree on this principle, it’s left to the free will of each entity whether they want to ‘polarize’ (towards STO or STS) or to go beyond the polarization between STO or STS.

Using the same image as illustration.
image
It’s left to each entity’s free will whether they want to identify as: “I am white” (and thus not black) or “I am black” (and thus not white) or “I am both white and black”.

As eliminating black it will become:
image

And eliminating white it will become:
image