Liberals would tell a story where things are reversed and class is causal of the pathology- they would say the economic changes that have occurred for the last few decades have increased ‘economic uncertainty’ for the lower class (for some measure of uncertainty.) which has lead to marital stress and divorce.
There were many historical periods with much much greater economic uncertainty, they also had higher marriage rates.
There were many historical periods with much much greater economic uncertainty, they also had higher marriage rates.