"The Pew research data provides information that is probably not surprising. Only 4 percent of respondents see contraception as wrong. I wonder how many bishops are included in that 4 percent? Over 90 percet of participants see birth control as either morally unobjectionable or not even a moral issue."

The shame is that Paul VI believed he had to issue Humanae Vitae to protect papal authority.  Instead, it undid it.