Noodlewhores are extremely self hating.
They have to compensate for their low self esteem by dating white men (or any non-asian man)
To them any non-asian man is a step up and they get to be seen as progressive.
The truth is that a lot of men view them as cheap easy self hating/low self esteem whores for non-asian men (especially white men).
And for the people that have some awareness, they dislike noodlewhores for the extreme treachery that they commit against their own race of men. To the point of disgust basically because people are naturally disgusted by injustice, unfairness, and infidelity. Especially if it's going on in such a mass open scale.
Anyone with eyes can see that black women and asian men don't have the same privileges as their opposite gender counterpart when it comes to interracial dating. So when some people see black men and asian women in interracial relationships that immediately invokes a feeling of disgust in people because of the blatant display of extreme power/privilege imbalance.
In other words people do indeed view noodlewhores as "low down". Despite noodlewhores viewing themselves as higher up by being in interracial relationships.