I grew up Catholic, but it never made much sense to me. The first time I heard salvation preached in a Baptist church, it all came together for me.
I believe that the many denominations are a sign that our God is a big God that can be worshipped in many ways, as long as The Word is in the center of it. Some folks are going to be mighty surprised at the some of the people they meet in Heaven.
I think you are right!