what is missing it seems is a zero sum. on alimony etc, the pie is largely fixed, that which largely is gets divided. the pie would be the same were the person married or not married, if they married, their piece gets smaller, somebody else gets a piece.
my limited understanding is one elects for levels or amounts of survivorship with sosec, but I am unsure of this. does the act of get gin married make the pie bigger? it should not. the premise is that the producer was more productive with a spouse on board, and the market measures that truth in terms of rewards and hence sosec pie size.
to me, that is the murky area, I'm all for survivorship, but it should not be making pies bigger, that is simply discriminating against the unamrried.