[[[Sorry to say I believe virtually all churches and Christians will stop speaking out about sin]]]
Churches already have stopped. You rarely hear sin discussed even in supposedly hard core evangelical and “fundamentalist” churches. Sin is only mentioned in the general sense, as something vague and unpleasant that God does not like.
Pastors rarely get specific about sin. They do not do sermons about lying, stealing or fornicating, or explicitly say you are destined for @#!*% for rejecting Christ. It’s all sweet nothings.
Which State do you live in? I would like to extend an invitation to visit our Baptist Church, get some good ol’ “fire and brimstone” sermons and watch people praying at the altar.
Just about every sermon the Pastor will make reference to sin and becoming right with God...it's part of the Altar Call.