What is racism? It is the presumption that because you know something as superficial as the color of one's skin, you know all you need to judge a person.
Why do I bring this up? Because people like Darth Id are utilizing the exact same prejudice in their judgment of religion and believers. When they know a few superficial aspects, they think they know all that is necessary to condemn the whole thing, when in reality they are ignorant to almost the entire substance.
Ergo, Darth Id is a bigot, and I'd say the same for imperialscum. Though I admit that the latter's phrasing was generally a bit more tactful, he still demonstrates the same ignorance and prejudice.