Not hard to know why many are leaving - they have told us over & over.  

We are Sexist in our ordination practices, we are Clerical and make lay people feel less important than clergy (often thru our liturgies, & by giving ordained deacons work over   laypeople), we protect pedophiles, we don't allow married clergy, and gaybashing.

Also, a side note, if NCR itself is really interested in seeing less people switch away from Catholicism to the NONES, they might consider no longer accepting advertising support from groups like the AUSCP, Association of US Catholic Priests .  This group seeks optional celibacy but not equal ordination for women in our church.  This would result in complete gender segregation of rule and sacramental power in our church, and would represent the most heinous version of sexism in our church's 2000 year history.  This is true because the last time married men could be ordained priests there were women presbyters leading parishes and presiding over Eucharist.