The liberal church in the US has been doing this for over a hundred years.
Just two goals out of the 45 listed in the 12th chapter of The Naked Communist, and of course just because the book dates from 1958 does not mean that the commies were not aiming to do that to the USA even a century before its publication.
- Infiltrate the churches, and replace revealed religion with social religion. Discredit the Bible and emphasize the need for intellectual maturity, which does not need a religious crutch.
- Eliminate prayer or any phase of religious expression in the schools on the grounds that it violates the principle of separation of church and state.