Feminist myth. For most men, standard of living drops by 10% to 40% in the years after a divorce.
http://divorce.usu.edu/files/uploads/Lesson7.pdf
“After correcting the data file, Peterson arrived at figures more in line with national studies, with women’s standard of living decreasing by 27 percent in the first year after divorce and men’s standard of living increasing by 10 percent. “
http://www.acbr.com/biglie.htm