(A) Definitive statistics on divorce are impossible for any group until they are all dead. I got married in 1973, but until either my wife or I die, it is not possible say whether our marriage will end in death or divorce. The stats in the linked article are MIMIMUM divorce statistics, showing what percentage of the subject group is divorced TO THIS DATE. It will inevitably increase.
(b) Religion has nothing to do with the immorality of divorce. When you get married, you promise to love (etc) someone until death. You make this promise in front of the most important people in your life, and a government or religious official. It is the most solemn promise most people ever make - infinitely more profound than even a 30-year mortgage.
If you break that promise, through your own fault or lack of seriousness, you are a scumbag.
iii. Our culture trivializes love and marriage, creating totally unreasonable and childish expectations for an institution that has survived for eons, when addressed properly and maturely.
4. Anyone who even uses the expression, "soul-mate" other than in jest, is an idiot.
E. Arranged marriages have a much greater chance of success than marriages made out of "love." This is largely due to the culture, which encourages a realistic approach and expectations.