Why the feck do these morons ask what colour your pubic hair is? If it's ginger on your head, of COURSE your pubes are going to be ginger!
It's pathetic and rude and usually comes from the same arseholes who think it 'turns a woman on' when she inserts a tampon. 
FWIW, even though ginger is classed as quite 'cool' now, I know some ginger people have had a rough time, and people have been very abusive to them.
Personally, I think ginger is beautiful, I mean absolutely stunning - because it's so unusual. 
My hair is shitty mousy. Too blonde to be brown but too brown to be blonde. I hate it and have always had it lightened.
I think ginger is waaaaay more popular and well-loved now than it used to be (pre 2000s) but some people are still rude to some ginger folk. As I said, the 'is your pubic hair ginger too' question is a joke. I would say 'nope, it's fucking black with pink stripes, you thick, ignorant cunt.'
My DH had light ginger/strawberry blonde hair growing up, and his skin is quite pale. He has had sooooooooo many comments - even now in his middle age - saying he 'needs to get a tan' that he is sick to death of it. I have started saying to people 'my husband's skin colour is fuck-all to do with you, he is perfect as he is, so do one.' I get some filthy looks but don't care. I am sick of people saying he is 'too pale.'
No he is not. Fuck off you cunt. 
A few people I know (who are ginger) get similar comments, as ginger folk generally tend to have pale skin.
Gingers rock though. It's a beautiful hair colour! 