I think that's a healthy outlook. It's not your job to educate your coworkers. Though, I think people should feel ok discussing it. The idea that white people would "never" understand is a little bit much, but it's not going to be an easy conversation. This is the type of thing that you are only going to change minds about by methodical teaching. Honestly, I don't recommend it, unless this is a friend of yours that you want to maintain for a long time, and think it's worth investing the effort for the long term health of the friendship.