Just like sexism is not racism.
Sex, age, etc are more defined delineations.
Who is to say the 1.3B population of Indians does not have multiple races? They might all be the same tribe in the eyes of a person with ancestors from Europe, born and raised in the US. But for someone in India, they very well could view the other 1.29B Indians as being in tribes as different as “white” and “black” tribes in the US.
Note that racism is not skin color-ism, since a very light skinned descendent of a darker skinner person is also, commonly, referred to as being “black”, especially if they have obvious physical traits that display they have “black” ancestors.
Race in the US (and other parts of the developed world) is about the socioeconomic tribe that the one belongs to, or that one’s network (including ancestors) belong to. That seems very similar to castes in India.
Playing semantics during discussions on discrmination always has some undertones of trying to justify said discrimination, because of course it is something different...
Because that sounds a lot like telling someone to pull themselves up from their bootstraps after stealing their boots.
Will those affirmative actions extend how long the caste system stays around? Probably but they’re meant to be in place for a couple of generations (40-80 years) which should be an acceptable amount of time to level the field.