I also disagree. I've seen Wicked close to 30 times now, and I see nothing wrong with it. Just because there is magic in the show doesn't mean they advocate it, and they certainly don't. In fact, the Glinda in the Chicago production is a strong Christian.
It's about a girl who is different from everyone else-she has green skin, and a popular girl. They're in college together, and at first, the green-skinned girl, Elphaba, is teased and made an outcast because she looks different and has "special powers". The popular girl, Glinda, is forced to be roommates with Elphaba. However, while they spend time together, Glinda discovers that Elphaba is just misunderstood, and feels badly that she treated her differently. They become best friends. Their journeys separate unexpectedly, and Glinda and Fiyero are the only ones who know that she really was just trying to help when she left town. They grow up, and Glinda and Elphaba happen to find each other again, with the help of Glinda's fiancee, Fiyero.(Note, they are only engaged because Glinda surprises him with an engagement party. He never actually proposed. It's played out very funny in the show.) Then, Fiyero, who works with the Emerald City guards, is caught trying to help Elphaba hide, because he knows everyone is looking for her. Glinda tries to stop the other guards from hurting Fiyero, but fails. So Elphaba attempts to use her "powers" to HELP save him. At the end, Elphaba and Glinda say a very heart felt and touching goodbye to each other for the last time, and Fiyero and Elphaba are reunited. Glinda thinks both Fiyero and Elphaba are dead, but they can't tell her the truth if they want everyone to be safe.
It's about understanding and friendships. It's about accepting others, and teaches you to get to know someone before you decide if you like them or not. It's an amazing show with a very touching and special message. You can't describe it, it's so good. Children attend the show every day, and love it. My pastor and his wife thought it was fantastic, and recommend it to everyone. They heard about the show from someone else in the congregation.
And of course, the show is completely made up and fake. Explain that to your children, and they will be absolutely fine and enjoy the fantastic music, great costumes, incredible sets, and excellent performers. This is a musical you can't go wrong with. It teaches you not to judge-so don't judge the show unless you've seen it.