when I went to ASU, I was a tiny bit apprehensive about rushing because of my ethnicity, but I didn't let it stop me.
I was naive at the time and assumed all groups NPC and NPHC held rush together
.
All the NPC chapters were very diverse, but had a few black members, I would say from what I learned during rush that either most or all had either some who were current members or just graduated.
The chapter that I ultimately pledged at from the inside looking out, was the most diverse having representatives from all ethnicities. This was back in 1991, I don't know how diverse the groups are now, but I'm sure they are about the same or even more.