So is the converse true?
If a religion does have a violent group, it should be mocked, regardless of the rest of the religion's adherents?
My opinion of the tasteless art: It was tasteless. I didn't buy any of it. I didn't applaud any of it. I didn't advertize any of it. I didn't consider it appropriate, constructive, or civilized. But I'm sure it made the artist some money. Unfortunately.
As will the cartoons of Mohammed make money for their creators. Unfortunately.