Forcing Contraception on the People

Really Obamacare is going to force Catholics to cover contraception?! What the law says is that if you are an insurance company and want to participate in the exchanges to cover 46 million new customers you have to provide uniform benefits. If you are a Catholic insurer or an insurer that opposes this "mandate" don't join the exchanges. You as a corporation or church can do whatever you want except participate in the exchanges. Why is this concept lost in the debate?