I guess I'm with the others who wonder if you knew what the attraction was when you walked in. I mean, Michael Jackson is pretty prevalent in the posters as you approach the theater -- did you not see them? If you DID see them, and you DID know that MJ was in it, then it's kind of silly to pull up the whole "shame on you Disney" thing
after the fact, since that obviously didn't deter you from going in. It kind of reads that because you didn't like the show, Disney is scum for having put "this pedophile" in an attraction. But if you had thought the show was good, it would have all been okay.
If you feel so strongly about how horrid the attraction is -- whether it's because you don't quite get that it WAS an 80s attraction and is, therefore, bound by that technology and you think that's wrong, or whether it's because you don't like Michael Jackson the person -- then write to Disney and tell them. But if you're just mad at yourself because you didn't think to check on what the thing was before you walked in and so now you're going to toss the blame on Disney for somehow forcing you to watch it ... well ... then shame on you.