Agreed. We all sin. But then, most Christian groups teach this, do they not? Certainly the ones a I am familiar with do - Baptist, Assembly of God, Church of Christ, etc ...
You would be surprised to find that there are many churches that find it appalling that anyone would preach against sin. Most often these are mainline churches who have abandoned their foundational doctrines and replaced them with a humanistic relativism that states that there are no bad people, only bad decisions.
There is a need to remind people of the true message of Christianity, and of its impact upon our political institutions. If not FR, then where?