As for Catholicism, their Doctrine is erroneous and entirely unbiblical. I'm not going to say they're bad people, they are just miss educated and decieved.
What annoys me about many Christians is that they can't seem to comprehend the fact that not everyone follow the principles of the Bible and that is our constitutional right not to do so. Many Christians seem to think that only Christians should have any rights in this country. If you tell me that you can't do something because it's against your religion then that's all fine and good but the minute you tell me that I can't do something because it's against your religion, then thats when have a problem. Also it is a common misconception that this country was founded on Christian principles. Our founding fathers were deists and Freemasons.