Jews are just as bad, had this argument a few month ago on that shit site (fuck spez) as soon as I pointed something out the first reaction was you're racist!
Sorry but Religion ≠ Race
A person can be ethnically Jewish though. Arab is also an ethnic group. Both groups have a religion that is typically associated with them. But not all Jews follow Judaism and not all Arabs follow Islam.
Religion does not equal race. If your comments were directed at a religion then they weren't racist. If your comments were directed at an ethnic group then they may have been racist.