Are the rumors of Disney being anti semitic and subliminal messages true?

I have only heard rumors that Disney has excluded persons of color from being in many of their movies and amusement parks. That they tend to depict Caucasians as heros/heroines more than other races. And when they do show non Caucasians such as in the Princess and Frog, they show them as less beautiful, dealing with hoodoo or have them less educated or less inspirational. i.e. showing Caucasians living in castles and non Caucasians living in ghettos or swamps...