If you're boycotting something based on false rumors you read on an Internet forum, I'm not sure how you buy anything.
Hey, I heard that Kim Jong-un bought out all the world's watermelon farms, so every time you buy a watermelon you're contributing to the oppression of North Koreans!
That's a lot of words to say: "the OP is incorrect". But I appreciate your concern.
And, so there is some factual outcome or use to this thread, I'd like to add that I'm looking forward to Murdoch rotting in actual, or metaphorical, hell.