I just did a quick search and his father Elias Disney was an ardent socialist. Walt generally followed a more capitalist walk of life but he was reportedly a Congregationalist Christian which at least from a theological perspective places him in the liberal/progressive camp.
Disneyworld may be fantasyland but EPCOT was Disney's utopian vision for how communities should be.
Walt Disney rarely set foot in a church, and did not profess any denomination affiliation.
He was an unabashed conservative who served in the army, turned his studio over to the war effort in the forties to make training films and propaganda cartoons, fought the employees trying to unionize his studio, and testified before congress about Communist influence in Hollywood.
And if you had been issued an official Mickey Mouse Club membership card in 1931, you could read the creed printed on the back: “...I will be truthful and honorable and strive, always, to make myself a better and more useful little citizen. I will respect my elders and help… children smaller than myself. In short, I will be a good American!
A lot of people didn’t (and don’t) like Walt Disney, but “liberal/progressive?” Nope.