“...our identity is NOT in a denomination or congregation or group of men.”
Then why the fear in identifying them? Christians should have neither fear nor duplicity and yet the anti-Catholic crowd here includes those who refuse to identify what congregations or denominations they feel leads them (and presumably others) to Christ.
Catholics have neither of those issues, we proudly proclaim our membership in the Mystical Body of Christ and His One True, Holy and Apostolic Church.
Why the fear? Is the light of day so hateful?
It's not fear, although I don't think you'll believe me when I tell you this time again.
It's to not give Catholics the opportunity to label and pigeon hole everyone and think they have us all figured out. And because our identity is in Christ, not a denomination. The place I go to worship is incidental to my salvation. I can go to any one of several local churches which preach out of the Bible and it's just a matter of preference for that particular day.
What we believe is found in Scripture; that is salvation is by grace through faith in Christ and that if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved.
It's that simple and that's all that counts. The other things that sometimes cause denominational division are incidentals and anyone who makes more of them than they should to cause division is wrong.