It gives us a snapshot of what marriage used to be like. I can go back further, but it will just make my point even more obvious. Marriage is on the decline - gay marriage is simply accelerating the decline.
Your own post said that marraige in MA was 7.9 in 1990, 5.8 in 2000, 5.5 in 2010. The decline between 1990 and 2000 was 2.1 or by about 27%. The decline between 2000 and 2010 was .3, or about 5%.
The decline is actually decellarating.
I'm not quite sure what your arguing here, sorry but either you were a little vauge or I'm just being overly cautious in interpretting what your saying.
Regardless, I figure:
a) You could be arguing that the divorce rate is decreasing more slowly than the marriage rage.
b) You could be arguing that the people who do get married nowadays are more likely to be in a heathier relationship with each other.
B actually makes sense and I suspect it could be ture, it certainly deserves some looking into, but I fail to see how its a bad thing. I would actually consider that a good development for our society.
A on the other hand is simply not true. Your marraige divorce ratios in your other post show that while between 1990 and 2000, there were more divorces per marriage. Between 2000 and 2010 there were
fewer divorces per marriage.