Episcopal Church: - 18% (2002-2012)
United Church of Christ: - 20% (2005-2012)
Presbyterian (USA): - 22% (2006-2012)
Evangelical Lutheran - 12% (2009-2012)
Of course, the declines are likely explained by many other factors; many, if not all, these denominations were already on a downward trajectory, as their liberalizing trends didn't begin with endorsing a redefinition of marriage.
What's more, Catholics and others committed to an orthodox understanding of morality and marriage in particular should not take comfort too easily. When our Lord walked the earth, people walked away from him because of things he taught, and in the end, the crowd chanted "crucify him" instead of "my Lord and my God." So we should not expect to be popular when we offer the Lord's message.
But embracing an "evolution" of marriage didn't help, and almost certainly accelerated the decline.
Data from Alexander Griswold, "How To Shrink Your Church In One Easy Step," at The Federalist.
MY COMMENTS: The denominations listed above have betrayed Christ by conforming to the secular world as the term "world" is understood in St. John's Gospel and the Book of Revelation. In fact one wonders if these congregations, both their laity and clergy have a death wish as they continue to do what the LCWR does to Religious Life in the Catholic Church and yet remain in denial enabling such decline rooted in facts. (For example I mentioned in the previous post that in Augusta and it would be similar to Macon, although Augusta has a much larger Catholic population, in the early 60's there were over 70 nuns in the metro area in four different orders. Today there are two to three aging nuns. Thank LCWR and its ideology of Religious Life for that!)
But we do know that Church attendance in the Catholic Church has declined in the USA since Vatican II which means that in terms of the number of lay Catholics which is more today than prior to Vatican II that fewer Catholics today attend Mass than prior to Vatican II with a smaller but more faithful Church. Today in some places in the USA (usually the most secular, liberal areas such as the northeast and mid west) perhaps 15 to 20 % of all Catholics attend Mass regularly. It is higher in the conservative south. But that is compared to almost 90% attending Mass each Sunday prior to Vatican II.
If you want to see what full, conscious and active participation was all about, you have to understand that it was higher prior to Vatican II in terms of Catholics actually attending Mass compared to today where there has been an unprecedented decline in full, conscious and active participation in the liturgy.
What accounts for this in the Catholic Church in the USA?
INFIDELITY TO GOD AND HIS CHURCH WHICH HAS LED TO:
a. the sex abuse scandal which has alienated so many Catholics and we can lay at the feet of bishops mismanagement and lack of transparency
b. Infidelity by clergy and laity to the Deposit of Faith especially obedience to the Magisterium in the areas of Faith, Morals and Canon Law (Morals based in Scripture and fortified in Natural Law)
c. Outright rebellion against Pope Paul VI's Humanae Vitae in the all areas of sexuality beginning with its primary purpose within the context of natural marriage which has led to the desire for sex divorced from pro-creation and natural families, same sex marriage and female priestesses
d. Fierce individualism which has led to personal infallibility as it concerns subjective faith and morals and a make-it-up as you go kind of cafeteria Catholicism, picking and choosing and developing new and poison concoctions
e. liberalism that is worldly and makes the Church simply a horizontal community for people to hold hands and feel good about what they do especially in the areas of social justice and helping the poor
Perhaps you have others observations