Peter wrote
but blindly follow tradition without knowing the background and reason
might be a serious issue...
Of course, the Islamic world today demonstrates this. But a willingness to have civilized conversation means that they at least have hope. Members of modern culture are stupid, evil, and incapable of civilized conversation. They are hopeless. The Mennonites are hiding out in the bushes and have avoided infection until now. But I think that if they don't confront the core issue I raised here, they are doomed.
The 2 threads I linked to in my initial post are still active. It will be interesting to see how they turn out.