even i, a privileged arab who has no exposure to the atrocities being committed by western powers outside of their borders, have experienced some discrimination. i have been given the "extra" and "random" security check at airports more than once. and my family has been told to "go back home" when were were on vacation abroad. and i have heard of stories of many students who have been detained for hours and even deported without being given a reason.
of course that's not the same as the maiming and slaughtering of innocent people, but it's part of the system, and is done for the same reasons.
Dude, discrimination against minorities exists everywhere, it's actually a natural phenomenon that exists psychologically in humans, and even other species. In many western countries it's a natural part of a system rather than a conscious rationally made decision. The Harvard Implicit Association test shows that this discrimination exists in the vast majority of people (to various degrees) from all backgrounds and ethnic groups. I'm not pointing this out because I want to say 'everyone's racist so stop complaining', but because I want to show that implicit racism exists where explicit racism has been removed to a large degree. The reason you notice it in western nations is because they are usually the policy makers and political/military leaders. On the flip side though, unlike most countries, some western countries at least aim not to be explicitly racist, and by far the biggest anti-racism measures exist in those western nations.
Anyway, I'm not defending the west, but I'm just saying that this isn't all about racism, and it isn't an exclusively western phenonmenon.