Take a look at what happened to the ELCA, Anglican communion, Old Catholics, Methodists, UCC, etc.
When a church gets to the point it decided to ignore scripture and ordain women as pastor/priests, then it quickly jumps right in to ignoring the rest of the book.
Red - It's just not that easy. ALL churches ignore parts of scripture. I suppose that what you consider valid is as important as what you choose to ignore.