I have heard that too and have felt conflicted about it. Anti-Semitism, as all prejudice, is disgusting.
Yes, but the thing of it is, Walt just rode along for the ride in regards to how things were in the time period in which he lived. Therefore, you cannot really blame Walt for the crux of society being racist or whatever. I mean, that's like blaming Elmo solely for the deconstruction of
Sesame Street. Yes, Elmo helped by relishing in his newfound status, but if it were not for stores promoting him & audiences eating up every bit of new Elmo material they could, then Elmo would still be where he was originally...just as a background monster character.
I don't think Walt Disney was an outright anti-Semite.
Plus, his surviving relatives have said that all that was just hooey promoted by the demoralization of the world. Both that so-called anti-semitism and that whole cryogentic freezing story are a load of bullocks, considering one of the most reputable sites that deals primarily with Urban Legends--snopes.com--has debunked them both (along with debunking the infamous "hanging munchkin" myth popularized by
Wizard of Oz/Wicked fans).
But regarding this battle of man and frog verses man and mouse, I do agree that Kermit is more "real", due to his accessibility and ability to live in three-demensions (and his ability to basically "live" a life of his own without Jim now to guide him), but Mickey will always have a place--alongside Kermit--in my heart, because of his nice guy attitude and because Jim himself chose to associate with the Disney company, despite what faults the Mouse House has had over the years.
Unfortunately, that association may be tied in with money, because with the Jim Henson Company being a relatively small organization, it has needed some way to keep its various characters--and the franchises within which said characters reside in--inside the minds and memories of everyone who's been touched by the moving masterpeices Jim and company have made over many decades.
As
"Million Dollar Man" Ted DiBiase often said, "Everybody's got a price", and that price is the association between the Henson company and the Mouse House.
Thusly, what better way to keep the various Muppet franchise alive than to stick with the most somewhat beloved company that's maintained its status--despite pitfalls here and there--for practically years upon years?
As such, because the frog and mouse are now family, I hereby now refuse to pit them against each other in a family fued anymore.