Ok, I think we can rule out the "if" part.
JW's like to pick on the Catholic Church in the same way Ahmadinejad picks on the United States. It's just a big visible target known by all that allows him to spew his ignorance.
Since Rutherford, JW's have been a marketing religion, designed to define themselves against the religions they are competing against for members by using a formula that reinforces what they aren't. Comparing themselves to other religions is the only way they ever get members.
Their whole rallying cry is "WE ARE DIFFERENT!"
Let me put it this way, if the Catholic Church were a monotheistic religion that worshiped Jehovah, then Jehovah's Witnesses would be a Trinitarian religion that worshiped Jesus. Just as long as they are different, thats all they care about.