Thanks, dennism.  That "if your faith is strong..." as Bishop T. Tobin explains it is really not about faith in Jesus, it is about faith in the Catholic church: how it worships, what it teaches.  The Church has a mission to bring the good news of Jesus to the world - to teach what Jesus taught.  What do they do when the way in which they bring that news doesn't work, when neither the words nor the rituals which should evoke love doesn't work?  ...when huge numbers of "believers" don't believe every thing but aren't free to discuss their disagreements?  

I think many of those who aren't participating simply don't find Jesus there, don't believe some of what is taught is really what Jesus would say, don't find spiritual growth.  

Pray, pay, obey doesn't work any more.  So, it is time for the Church to seek what does work, not to hold onto a past that has stopped working.