Why are so many white muslim converts ginger?

As I said, that is entirely dependent on the context. The obligation for those Sunni Muslims who adhere to the Hanafi interpretation of the Hadith (i.e., most Muslims) to dye their hair is not well observed nor particularly important in the grand scheme of things, nevertheless it is specifically designated as an obligation according to scripture.

I can keep this up for the rest of your life pal, I have literally nothing better to do.