Because I follow and support Americans United for Separation of Church and State ( AU.org )I became aware of a huge threat both to religion in the USA and the country itself. It's called Christian Nationalism. Here is a Wikipedia article about it. https://tinyurl.com/ynzyz9aa They are a well organized and well funded part of the GOP. They are working to make the USA a church-state. Here is an article about how big a threat they are to religious freedom. https://tinyurl.com/yzv5zez6
So give that a read and give then give Americans United a follow to stay updated. Also, You can follow Constitutional Lawyer/Author/AU Boardmember Andrew Seidel on Twitter. He is an excellent source of knowledge on this topic. His book on the subject is available here https://www.barnesandnoble.com/w/the-founding-myth-andrew-l-seidel/1129710712