The best kebabs in Newcastle are Halal, I eat them because they are the best kebabs and don't care if they are halal.
Best bagels I ever found were from a little Jewish baker in Dover Heights - guess where I went for bagels
I don't care if something is certified Halal, Kosher, Fair Trade, Gluten Free, Organic... I wouldn't let that stop me buying it if it was the product I liked.
I am fairly sure that if any of the Halal certifying organisations were funnelling money to IS or who ever, one of our fairly reactionary governments agencies would be jumping up and down on their (figuratively) testicles.
Relax if you like Coopers buy it, if you don't buy something else.
Mark