The Bible predicted that there would be a “great falling away” from the church. This may sound ominous to many Christians, but it's actually a good thing. It's often necessary to trim the dead wood from a healthy tree. Fewer branches allow more nutrients to flow through the tree unhindered by the deadwood.
Christianity has been around for more than 2000 years and still have a powerful presence. It's not going away, even if the left wants it to.
You're a futurist. Don't you believe what it says in the revelation letter?