I can validate your concerns based upon my experiences. I remember going to cafes and restaurants where they wouldn’t serve me and then in walks one of their group and they get served right away. I watch them hire and promote their own. There’s definitely a racism and supremacy taking place. I choose to think it’s a select group and most aren’t buying it. Sort of similar to the 4% who are actually white suprematists. Perhaps I’m naïve and suffer for it.