That's your baseless conjecture, because they never ridicule Judaism. You're trying to explain away the facts --- that they ridicule christianity and not judaism -- by suggesting your own fanciful, evidence-free explanation that takes pains to absolve them of a specifically anti-christian bias. I'm not buying it, because as Michael Medved points out, a lot of their anti-christian stuff doesn't make money, yet they continue churning it out - - - in other words money isn't their motive, hatred of christianity is.