"Since 1972, marriage rates in the US have fallen by almost 50%, and are currently at the lowest point in recorded history"

"The share of children born outside of marriage has increased substantially in almost all OECD countries"

https://ourworldindata.org/marriages-and-divorces

But you are right divorce rates vary, for instance decreasing post covid. I was thinking on the century scale. But also percentage of people entering stable commitment, and so even the possibility of divorce is much lower