I didn't know that about coca tea; why the hell is it illegal and caffeine's not!?

I didn't know that about coca tea; why the hell is it illegal and caffeine's not!?
Coca tea actualy contains high concentrations of vitamins that may have antioxidant properties. Vitamins A, B-2, B-6, C and E are all present in coca leaves, which may all help to boost the function of your immune system, increasing your body's ability to destroy toxic compounds in your bloodstream.
Because governments know that it would be fairly easy to perform an extraction of cocaine! Although I highly doubt it would be illegal if it wasn't possible to isolate the coke, unless of course the media whip up the fear-factor with some exaggerated scare stories of course, like they typically do.