Being Ranga myself I can honestly say that I have very rarely recieved any form of bullying for the colour of my hair. I'm not a 7 foot hulk or anything intimidating like that, I just simply disregard it as an issue and have done pretty much my whole life, this seems to negate the issue entirely with people. I have friends whom's facial hair grows with a ginger colour and they get tuanted for that as being a ginger while I can be standing right next to them. It has to do with how you carry yourself. Confidence is key.
If you are letting your hair colour become an issue, get over it, get comfortable with it and move on. Results should follow.
Have a look at the link below for a bit of a funny anyway.
http://www.youtube.com/watch?v=IZ9_Jba_PcY
- Inglis