I think what some people do have a problem with though is the way that the Catholic church has historically approached this, with confession (oh, I am so bad, I have sinned, punish me) on the one hand and all the songs about the glory of God which are uplifting (it is like a spiritual drug, it makes you feel godo for some time).
I think that an ideal church should be a place where people can "lower their shields" and show how broken they are.
Indeed. And, actually, confession -- or the Sacrament of Reconciliation, to use the current term -- can be a good place to lower one's shields, when the priest approaches it that way. Unfortunately, they usually don't.