This is a perfect example of what happens when the church displaces Scripture as its sole authority for faith and practice. If the Bible is not our authority, something or someone has to take its place. Unfortunately, and more times than not, the standards of the culture become the standard of the church. And if that is the case, what kind of light are we? If the light itself has also become darkness, how great is that darkness. If there is no stark contrast between the church and the world, the "city on a hill" metaphor does not hold.
First, I will pray for you and the state of your church and the church in the UK. Second, if you have already gone to those in error and have witnessed obstinance, you probably need to take a more radical approach. If you are unable to locate a church of like-mind, it may be that you have to begin a small group yourself. Locate a couple of families or more of like mind and begin a bible study and fellowship group. You may even want to advertise on the web or other inexpensive ways (postings at coffee houses, libraries, university, etc.) to get something going. I will keep you in my prayer. Don't ever give up. The saints must engage in the battle for truth and never give it up. Great will be our rewards! Feel free to reach out to me anytime.