Sadly, none of this is true. Dalits in the US even the small minority that they are experience even worse discrimination in the US than from India itself. India's English speaking caste consists of predominantly members of the upper caste of India. Now you can argue you can punish those who use caste to discriminate but the reality is that it's just not the case in india as the effectively create the barriers through the use of language and restricting the opportunity for those to learn it to only those who have and belong to upper castes. You talk about localization but in several countries this does not occur. We should care and saying we shouldn't is disingenuous and simply misinformative at best.