My wife suffered from PPD after the birth of our first. She also suffered antenatal depression during her second pregnancy.
SSRIs literally saved her life.
The difference to her personality was profound: the woman I knew and loved came back.
Was it a societal structure and support issue? No. She had support from myself, our families, family doctor, her obstetrician and a psychologist. My work provided me with paid time off to manage it. We had no financial concerns; she had 12 months of legally protected maternity leave with the first 6 months fully paid.
She was ill and the medication worked.