The Saudis, Latin America and Nigeria are some of the biggest oil producers. Are they really after oil execs? Or just Muslims, Latinos and West Africans? We'll never know.
Denying service is discrimination.
But jim crow laws aren't bad because they are just discriminatory, they are bad because they discriminate based on race. Racism, sexism, and classism aren't bad because they are kinds of discrimination, but because they are inappropriate grounds to discriminate on. A good example of a basis to discriminate on is sexual misconduct: if any of my friends want to ostracize or refuse service to someone who has recently been convicted or accused of sexual misconduct, I won't mind at all. But if instead they want to ostracize or refuse service to someone who is black or latino, I will mind a lot. This is because I don't care whether they are being discriminatory, but what grounds they are discriminating on.
For example:
https://www.vulture.com/2018/11/the-history-of-musicians-rej...
It does make sense somewhat, as to do otherwise would be compelled speech.
Maybe I missed the /sarcasm?
[1] https://en.wikipedia.org/wiki/Race_and_ethnicity_in_the_NBA#...
To address your example, let's pretend that the NBA announces they no longer recycle. Then my business that sells cardboard boxes to the NBA announces in response that we will no longer sell boxes to the NBA. If you think that has anything to do with racism - I'm open to hearing it.
If someone examined your company and found that you now only sold boxes to sports teams that are predominantly white - that would look quite racist would it not? I don't think the details or your intentions would matter much.