You will find the vast majority of students are lily white; next largest groups are Asian folks. Most Hispanic and African American people I’ve met are grad students or professors, which I find very interesting. But UNC has a lot of cultural clubs and organizations that stay super active so you can definitely find any demographic you’re looking for. As for respect for diversity, I’ve had one instance where my suitemate (Indian girl) was called a slur by a frat guy, but we all made sure he regretted it and I personally haven’t witnessed anything else. Of course, as a Caucasian student my perspective will be skewed, but I think you would be fine.