It seems to me that your issue is with the idea that the Church should have any authority in a Christian’s life. From what you have written, it sounds like you are one of those I-answer-to-no-one-but-God types. In order to be happy, you need to find a religious community that work with that sentiment. If one is not available to you, then you have to decide if joining the non-denominational church is worth compromising on that issue. There are probably some non-denom churches that preach that everyone is his own authority, but must don’t. In fact, some of them have any number of bizarre written and unwritten rules and they have no problem with excommunicating anyone who doesn’t follow them and anyone else who doesn’t like it. The frustrating thing is that these rules can be subject to change with the election of a new church board or the employment of a new pastor. It’s really hard to find a completely authority-free community to worship in.