Is this partially a legal question?
Is the non-legal answer roughly just "be a good employee" (and, more generally "do whatever you'd normally do to get ahead or protect your job in the business world")?
It seems so.
I don't really have a problem with the subject matter of the question, I just fail to see a non-trivial answer to the question (that also wouldn't just be listing what "a good employee" looks like, which, as an answer to that question, or any question really, just seems ... wrong).
Is that a good enough reason to close the question? I think so, yes.
I honestly think that people closed the question because they don't think white people are being discriminated against, and people reopened it because they think there is discrimination, but no-one's really considering whether the question's actually answerable.
The answers so far, in my mind, 100% supports this - they largely come down to "be a good employee" (and briefly touch on disclosing and coping with disabilities, which would make good questions, but that isn't what was asked here).