My response to the first part of this is, exactly, "so what," as all of those folks don't understand what the bible really is. In my liberal community there isn't enforcement of orthodoxy. The bible is understood as a human-created library of documents. Everyone is understood as being on a spiritual journey. Yes, we can pick and choose. And, that's what makes sense, since this was all invented by people in the first place.
And, to the second part, this is what made Jesus so radical. This is what caused Jesus to be rejected by his religious community. He did not follow the Old Testa