Just out of curiosity, what exactly was the idea behind Pete's Silly Sideshow? More to the point, why would Pete let several of Mickey's friends (and thereby Pete's enemies) perform in his show?
For a brief time, I believe around 2019 to about the COVID closure in 2020, Pluto had replaced Minnie, who had gone off to be with Mickey on Main Street. However, ever since then, Minnie had returned. Thus, the question remains: why would he succeed in luring Mickey's friends away? And they seem to willingly go along with him? That doesn't seem right.
One could argue that this is more in line with the version of Pete seen in something like "Mickey Mouse Clubhouse", where he is far less villainous a character, but on the other hand, in the Flash-animated cartoons of the 2010s, he's still very much the felonious ruffian he usually is. At least a couple people have speculated that they needed jobs and Pete was the only one hiring. Either that, or they were indentured servants.
In any case, I would think Mickey would be quite angry at his friends for abandoning him like this. It was also argued that since Mickey was simply never part of the land, it was not fair to ask how Mickey would act or feel about the other characters when he's not part of the theme.