You're assuming that all of those 1.5 billion people support the caste system simply because they come from India. This type of generalisation used to be the ba

You're assuming that all of those 1.5 billion people support the caste system simply because they come from India. This type of generalisation used to be the basis for the definition of the term "racism" before it got coopted by identity politics: "racism, also called racialism, the belief that humans may be divided into separate and exclusive biological entities called “races”; that there is a causal link between inherited physical traits and traits of personality, intellect, morality, and other cultural and behavioural features" (Encyclopedia Britannica; emphasis mine) I assume the original poster means to keep out the discussion of the caste system by keeping out its supporters. Disregarding the feasibility of such a plan [1] it does put this proposal in a different light: keeping out supporters of a system or ideology which divides people based on unalienable characteristics is something which those who claim to be against racism should welcome. [1] https://www.pewresearch.org/religion/2021/06/29/attitudes-about-caste/ https://www.pewresearch.org/religion/2021/06/29/attitudes-ab... shows that support for the caste system is less prevalent among higher educated Indians who are more likely to immigrate based on employment opportunities so in that respect it would be feasible. Given this fact a rule to keep out caste supporters could be easily construed as an attempt to keep out less educated people by those seeking to weaponise identity for political purposes.