Or the payer of support finds ways to "hide" income or they put in less effort and earn less knowing that some of it goes towards child/spousal support.
Thats probably more accurate. I knowi work a lot less now than i did a decade ago because i have built up a nest egg and there is no point incrementally destroying my health, work life balance, etc. When the greasy government is taking half. The incremental value is not there vs non taxed uses of my time like raising my children.
Indeed. If you follow that line of thinking, there's probably lots of both men and women that struggled to support their partner before divorce, and are relieved of that burden after divorce. You could easily see effects from this on both side at the same time. All it would take is for the primary earner income to go down, and for the low or no income partners earnings to remain the same. This results in a net reduction in income for both genders.