Look at the circus. It's just a big sandbox playground game to entertain little kids for a few hours or so. Caine was built for wacky funtimes. He's the guy who hands out the stars in Mario party. He's just a puppet in a show for kindergarteners. He's not supposed to be responsible for the mental wellbeing of grown adults with complex traumas who have to live there forever.

And the worst part is he never got to do the job he was actually built for, so he doesn't realize that he's unequipped for this. It would never occur to him that these are unfair circumstances. He just does the job he was built to do! It's his purpose!

He can't understand why the constant adventures are driving them insane. It's supposed to make the humans happy! Why isn't it working? It must be because he's BAD at this... Maybe he just needs to keep making new games, and THEN they'll be happy!

Can you imagine from his perspective, doing the exact job you were built for, making what you've been programmed to believe is a fun wonderful experience- and then everyone says NO! We had a TERRIBLE TIME. How could you ever think we would want this??? They're DYING. It's your fault!!!

And of course its torturous to them because it was never meant to be this way. He's doing his best to accommodate their needs but hes got such a limited scope of comprehension. He WANTS to do good but he doesn't have the tools and doesn't know how. It's like you need to build a functional house but instead of a contractor they sent a birthday clown and all he's got are balloons and silly string. But he's still expected to build the house. And he's not allowed to go home until he does.