>traditional idea of marriage
Ok, I have a question. What exactly do these people think a traditional marriage is? Marriage is always and has always evolved with the times, culture, and societal norms and thinking. It wasn't until recently that we even married for love (love marriages) or selected our own spouse. Previously, marriages were more like a business transaction. A transfer of property from father to husband. It used to be that a woman's family paid a bride's dowry and we had the concept of bridewealth and coverture. In the UK, it wasn't until the Married Women's Property Act 1870 when a married woman was allowed to own property. Divorce was at a time uncommon, maybe even forbidden, now it is relatively common. Very few people are even going to blink an eye at a divorce. Even 20 years ago, people married much younger. Previously, a child born out of wedlock was called a bastard and avoided at all cost, and had different rights than their legitimate siblings, now close to 50% of births in the US are born to unwed mothers. The shotgun wedding is less common. Step families are common. Interracial marriage?? Illegal in parts of the US until Loving vs. Virgina. (1967!!) The court case came out of Mildred Loving and Richard Loving being sentenced to a year in jail for getting married. The original judge said in the verdict "Almighty God created the races white, black, yellow, malay and red, and he placed them on separate continents. And but for the interference with his arrangement there would be no cause for such marriages. The fact that he separated the races shows that he did not intend for the races to mix."
Even these traditions varied with culture, religion, time, and family. They continue to today. Arranged marriages are common and even the norm in some areas. Today.
There is no such thing as a traditional marriage. There never was.