Mickey's still there, it's just their own hipster animators hate him because they never grew up with the original cartoons (Disney kept hiding them from us throughout the 70's, 80's and 90's)--
But, since said hipster Ugly Mickey cartoons are doing so "well" on Disney Channel, the Studios theme park has already bet the farm on turning the Great Movie Ride into an Ugly-Mickey ride, and they're currently doubling-down on pumping up the marketing for the cable show.
If you don't get those toons over there...consider yourself LUCKY.
(Or, should I say something about Scarlett Johansson's vanity self-typecasting, so you can pull the post again? )