@someone in monsey
Really? If you were to go to a job interview and get the feeling afterward that they are not interested in you because you’re frum, is there any way you can sue the person? Of course not. If a Black person knows that his resume is much less likely to get a call back, there’s no legal remedy for that but it’s still systemic racism.
This, of course, doesn’t mean that these phenomena exist. You would have to look at empirical data for that, and the evidence is mixed.