I suppose that's my misunderstanding of the situation.

Are they against indian customers as they are normally rude, smelly, unhygienic, and pushy/cheap/looking for discounts...

Or are they against indian customers because of deep Asian conditioning that darker skin = dirty/lowclass/probablyHasDiseases?

Or all of the above.

If it's the second, then your right, it can't really be helped.

But if it's the first then I'm sure we can create a technical solution to alleviate this problem.