Actually, the term catholic with a little c means universal. The term was used initially because prior to the schism in the 1000's and the Reformation that began a few centuries later, it was the one universal Christian Chirch of Europe. After the Reformation, Catholic with an upper case C became a term generally associated with the Roman Catholic denomination.

I would encourage people to find a faith where they can grow spiritually, but then again, I'm not a spiritual bigot!