Actually, if you look at what most Protestant churchs say in their creed you will find that the reference to "one holy catholic and apostolic church" does not capitalize the word catholic as you have in your post. The word "catholic" has a very different meaning from your Catholic church. The reference in most Protestant churches to a catholic church (lower-case "c") pertains to a universal church (look up the word catholic in Webster's... Roman Catholics don't possess a monopoly on the word). It is not a reference to conventional Catholicism as you implied. This reference to a catholic church (i.e. a universal Christian church) is the very reason why most Protestant churches recognise Catholic baptismal and marriage rites. You've fallen into a common misconception regarding Protestant Christianity.