I just wanted to point out a little something regarding indoctrination vs education. My daughter is in her 20's now, but when she was little we never discussed racism in our house. It wasn't a part of my world and I really didn't want to bring such unpleasantness into my home. Then something happened when she was little, and I realized I had left her totally unprepared to handle racism. By being silent, I had given her no tools at all. So I sat down with her, and in terms appropriate to her, we discussed skin color, hair etc. She had friends of many backrounds so we talked about them. Then I asked her if she would ever not like her friend because her skin was darker. She said NO (racism is not natural). So I explained that some people in the world feel that skin color matters, and she knows it doesn't, so she doesn't have to believe them.
I suppose one could argue that it was a bit of indoctrination---but I DID NOT want her to be carried away by hateful ideas because she was unprepared. I still left the choice up to her, but I'm pleased to say she has made that choice and does not tolerate racism.
It's just something to think about. You don't have to tell your child what to believe, you just need to educate him on the ideas out there. Then simply ask where he stands on it. By expressing the idea, he will then have a guidepost with which to navigate--he nor you will be caught offguard, whatever the final decision.
NC