Why is there a high level of divorce in America from the perspective of an immigrant? Full disclosure - this is based on personal observation, conversations with friends and reading - just an opinion.
1) The ultra independence
I wrote about this in this post - everything is available by credit. So a lot of us here can get to what we want or need without reaching out to other human beings. This reduces an interdependence on others and also causes an air of isolation. So you often hear, I will be fine by myself. I don't need a partner.
2) The paradox of choice
Again abundance means more stress and higher odds of depression. This TED talk explains this concept. That means that most people are in a constant state of stress - so less energy to invest in relationships and people.
3) Mistakes aren't erased
Everything in America is stored. You can't make a mistake and hope its forgotten. There is a record. Unless you are very rich and pay to have it buried, your mistakes follow you for life.
I think some combination of the 3 contribute to a high divorce rate.