There's a product, there is a population, and a good fit. How exactly is it a problem? If you don't like indian content, just don't read it. No one is forcing you.
What if most of the content on facebook was suddently in spanish? Would you stop using it or ask for a anti-hispanic filter??
It you feel like "these people are really overtaking my place", maybe the problem is not with them, but with you.
There are many websites, and one may want to cater to a WASP-only audience. But maybe it won't be as successful.