The "Separation of Church and State" occurs NOT in law, and was never intended to preclude Christians from office. It comes from ONE LETTER written by Thomas Jefferson to re-assure a Christian congregation that was worried that one flavor or other of Christianity would become an OFFICIAL church of the new nation. It HAS BEEN USED by people in power to scub the Christian God from the public green, from our schools, and from our collges... all because people are kept in the dark and fed bull$#!+ by liberal educators about the "Wall of Separation". It is there to protect the CHURCH from the STATE.
https://www.loc.gov/loc/lcib/9806/danpre.html
In order to ensure to citizens freedom of conscience, the church in the USSR is separated from the state, and the school from the church. Freedom of religious worship and freedom of antireligious propaganda is recognized for all citizens.So anyone who pushes separation of church and state is pushing the old Soviet system.
1936 Stalin constitution, Article 124
Citizens of the USSR are guaranteed freedom of conscience, that is, the right to profess or not to profess any religion, and to conduct religious worship or atheistic propaganda. Incitement of hostility or hatred on religious grounds is prohibited.
In the USSR, the church is separated from the state, and the school from the church.
1977 Brezhnev constitution, Article 52