The real churches will survive even if smaller. The others will fail because of one thing .... they are missing the glue .... real faith in God.
Those today that are 'non-denominational' - not affiliated with any of the old 'mainstream' churches have survived, and many are quite large with 'offspring' churches that thrive.
I’ve been thinking for a while now that the true Church in America will eventually have to go underground - meeting in members’ homes instead of church buildings, due in large part to this issue. Then a short time ago we see the guy arrested for hosting a Bible study in his home. Things that make you go “hmmmm.”