So a request like this basically ruins it for everyone as OcUK won't be able to provide any sweets in case they risk alienating or offending a particular ethnic group.

The OP just asked if it was possible to supply halal haribo, which people are forgetting in here...he hasnt once demanded that OCUK supply him with halal haribo.
Maybe it's the halal ones specifically that such?
I know Quorn bacon is vile, but that doesn't mean real bacon is vile.
Probably not, only difference between the halal and non halal ones is the lack of gelatine. Ive had my friends try both out and they more or less said that they both tasted the same.
Like i said for me, haribo whether its halal or not is nasty and vile and therefore i dont eat them. Although i have a bag of halal haribo in my cupboard that my missus eats now and again. But i wont eat them, i dont eat any jelly type of sweets.