Heavy-handed is an understatement. It's like Crash on campus.
I was in college when this came out. During a holiday break, while visiting my hometown, I went to see it with a friend of mine that wasn't going to school. I remember after the movie him asking me, sarcastically, whether my campus was as fun as the one depicted. All I could do was roll my eyes.
I give Singleton points for aiming at an "important" theme, but he could have done so much more than this string of recycled cliches and caricatures.
The film has all the cinematic mastery of an average episode of Beverly Hills 90210. (Absence of Ian Ziering notwithstanding.)
This movie, along with Poetic Justice, really killed the goodwill he had earned with Boyz N the Hood.