In modern day America, yes, it’s mostly a social club.
Have you ever heard of Albert Pike? He was a freemason who has written on some things…occult stuff.
But to answer the question.
It goes back to the Protestant reformation. The people question legitimate authority and ultimately rely upon their own selves to interpret and find a way to Christ.
The various regions had rules following Luther’s rebellion that the religion of the land was determined by the prince.
The various religions didn’t stand each other and for religious tolerance for their own religion various states were made in America.
The denial of authority naturally makes its way to denial of the authority of the Bible, and philosophy so far in general.
You get the Enlightenment.
Then you get America.
Then you get French Revolution.
increasing secularization is not any wonder.
We must stay firm in truth.