It's actually just a cunning hoax designed to lull your womenfolk into a sense of complacency. Surely you've realised by now it's too late to stop us and the ginger gene has been well and truly inserted into your national DNA?
"Cuddles - been breeding Jockanese insurgents since 1988"
Amazingly, something like 1 in 9 gingers is actually resident in Scotland. However sadly the percentage of gingers worldwide is falling, due to the recessive gene. So if you care for Scotland and gingerness, sh4g a Paddy bird today and hopefully genetics will do it's thing!