I think that's going too far. Walt Disney was directly involved in making Marry Poppins, and I don't think there's any evidence that he was a lefty.
He fired a cartoonist on Fantasia because the guy was a union activist who personally attacked him. His name was Art Babbitt, and he animated the mushrooms (and many other things).
A spoon full of sugar helps the medicine go down.
My FIL did the rising specters in the Night on Bald Mountain sequence.