burkas are a religious symbol and for some a modesty requirement so why would you ban them ??
Crash helmets are a safety item required by law to drive a motorcycle on UK roads so why would they be banned in stores and petrol stations?
Burkas are not a legal requirement, they are AFAIK not a religious requirement (so they keep saying - they just prefer them).
So if someone who HAS to wear a helmet to ride a bike has to remove it to go into a store (because they want to be able to identify the person) then for equality Burka wearers damn well should too.
If they object then they can go elsewhere just the same as a motorcyclist would have to.
It's simple really, nothing racist about it - just plain old equality.