The Catholic Church has a rich heritage of beautiful, sacred music that praises God, songs like "Holy God We Praise Thy Name" and all of St Thomas Aquinas' hymns, which are rarely heard in our modern churches today. Gregorian Chant, which the Second Vatican Council gave "pride of place" in the liturgy, has been totally replaced with David Haas and Marty Haugen drivel that attempts to pass for sacred music. So it's no surprise that most of our children will grow up thinking that Marty Haugen is the traditional music of the Catholic church, having only been exposed to this type of liturgical music all their lives.
What's wrong with these hymns? Well, some of them, like Gather Us In, have the people praising each other, rather than worshiping God. Others, like Come to the Feast downplay the sacrifice of Calvary and make the Mass a mere meal. We Are One in the Spirit could be the theme song for ecumenism, and certainly focuses on human pride. Here I am Lord also makes my list, because God sent Jesus to redeem us, and this song neglects that fact while making us our own redeemers. Lord of the Dance can't go unmentioned, though. It is the most ridiculous song I have ever heard played in a Church, and I have heard it plenty, always accompanied by hand clapping and swaying bodies. That's reason enough for it to be banned from the liturgy.
Therefore, I propose an index of forbidden hymns, starting with these songs: (Feel free to add your own to the list)
Gather us In
We are One in the Spirit
Come to the Feast
Here I am Lord
Lord of the Dance
I know there are many more, so let's hear your input! If you're not sure how the lyrics of these songs affect our worship, read this about the "cult of conceit" from Adoremus Bulletin.