The fundamental misconception is that popularity is an important metric in determining the Church's success. The more popular the Church is the more souls it attracts, but if that popularity is at the expense of offering a fraudulent Christianity it diminishes its ability to reveal God truthfully. Mainline protestantism that embraces contraception and female clergy has demonstrated that these things do nothing to prevent shrinking. People embrace religion in a quest to be connected to an eternal constant, something certain and reliable. The more a religion changes it tells people that it does not possess a connection to that eternal constant and they will do just as well without it. Fidelity and constancy have served us well. Change and innovation are on every corner. The local country club can change its rules and reinvent itself as much as it want, we cannot. You hit the nail on the head: we are not a secular organization.