"Cronyism (noun, derogatory): the appointment of friends and associates to positions of authority, without proper regard to their qualifications."
Cronyism is advancing the interests of your personal connections. Friends and family. If you want an explicit cutoff, the Dunbar Number suggests this group should have 100, maybe 150 people in it.
Conversely, there's 40 million black people in the US, and I really doubt anyone is even associated with all of them, much less calling them one of their friends.
You can change who you're friends with a lot easier than you can change your skin color, so the two result in different problems. They're both bad, of course. Similar to how "wage theft" and "shoplifting" are different crimes, even though both of them involve taking money from someone else.