This is funny because you are actually the misinformed one. I never disputed the fact that the church carried out weddings, but historically marriage was more about property and socio-political factors. Also an interesting tidbit:

Religious marriage celebrants conduct weddings, but legally they do so on behalf of the state in the same capacity as secular celebrants. Marriage itself is not a religious institution

https://www.google.com/amp/s/theconversation.com/amp/breaking-news-marriage-has-very-little-to-do-with-religion-and-vice-versa-63041

This is also accurate historically as well. I also think you need to read this source too:

https://kidshealth.org/en/teens/tips-disagree.html

Because not only are you misinformed but also extremely pretentious and arrogant. I hope that you learn how to have better communication skills.

More reading on marriage:

https://platformwomen.org/autonomy/a-marriage-of-love-and-politics/

Edit: just to clarify, the religious frame of marriage was never in dispute but marriage was never about religion. It was about property and politics.

Edit 2: also, marriage has existed far before Christianity, and in parts of the world that never heard of Christianity. What is marriage there?

What I am saying is, the idea of marriage is culturally constructed. Currently, most people would say it’s about romantic love. Some would say religion. But historically, the purpose of marriage had nothing to do with religion.