If people are taught to believe true love is never having to practice self control naturally they're going to agree with the pretense that ignoring the effects of contraception is the same thing as a closer walk with Christ. If people are taught to believe that multiple sex partners is the only way to fit in they're going to migrate to Protestant churches where half the sermons are about why no one should feel guilty since whatever they've done is already forgiven in advance. Where the population is taught to think with their glands instead of their brains, the population migrates to Protestantism. Sheep are easily led and as the culture of death leads them towards death the sheep gravitate toward the path of least resistance. The path of least resistance is the theology of the magic words.
Scripture spells all this out and warns about it but for people who revise and reinterpret Scripture to suit their current mood it all vanishes into the whirlpool of self-satisfaction. Jude warns about the heresy of Core and Luther revived exactly that heresy. The theology of, "Eat, drink, and contracept, for you have Christ by the throat now that you've said the magic words" is always going to be more popular than the Biblical, "take up your cross and follow me". This is obvious stuff, even to an awful lot of the Protestants who prefer to bash Catholics rather than confront their own dens of vipers. They don't want to recruit Protestants, they know what Protestants are like and hope that by luring Catholics away they'll have some members who are serious about their faith.
It's also funny to see folks in a country that has always been more than 70% Protestant talking about Catholics taking the country down the tubes. I never realized that Protestants all stayed home on election day and just let the Catholics vote. I guess that explains North Carolina where something like 3% of the population is Catholic and the State went for King Barry in a big way.
“The growth of Protestant churches...”
Your post, while rightly condemning the practice of contraception, also engages in a polemic under the premise that what Rome effectually teaches is the opposite of the things you charge Protestantism with, while failing to distinguish btwn two basic classes of Protestants.
It is not so Protestant churches that are growing overall, but evangelical ones, which separation is due to the Protestant mainliners becoming institutionalized and liberal like Rome, and these overall are dying, and both attack evangelical conservative churches.
And i do say that most of those in such institutionalized churches have not been born again. And as for the supposed 33k denoms, see here, http://contra-gentes.blogspot.com/2008/04/doctrinal-chaos-argument-one-of.html while disagreements and formal divisions also are a result of sola ecclesia, and under which are found the great heresies.
Nor were Luther and Reformers characterized by preaching antinominanism, but the opposite. http://peacebyjesus.tripod.com//Reformation_faith_works.html While it is Rome which fosters easy believism, that all that really matters is that you die in the arms of Rome. Only when they convert to evangelical faith is great concern for their souls manifest.
As far as a contraception is concerned, you are correct that it is wrong, though few realize it can result in abortions, and which needs to be made known (substantiation would help), yet the majority of RCs whom Rome treats as members also use it without fear, while also being more liberal in moral views than their evangelical counterparts, who are hardly functionally identical to atheists: http://peacebyjesus.tripod.com/RC-Stats_vs._Evang.html
While conservative Catholics consider their liberal counterparts as self-excommunicated, Rome treats them as members in life and in death, which even the treatment of “notorious public sinners” (who are basically sppsd to be formerly disfellowshipped) such as Ted Kennedy exampled.
As politicians reveal, it is not what is officially said that reveals belief, but what is characteristically exampled. And while Prots can formally separate from liberal churches, many conservative Catholics find the only way they can separate from their liberal counterparts is to be in schism, such as SSPX groups.
In addition, unlike in the past, while Protestants in general are taking the country down, yet they are joined by a majority of Catholics in so doing, but both stand in sharp contrast to the overall evangelical vote and in values.
However, both faiths are in overall spiritual decline, while in numbers Mormonism, Islam, non-affiliated and Wicca are the fastest growing faiths. Yet in a real sense the pre-college young are more open than in recent years, but are the most Scripturally ignorant and morally confused generation America ever raised. And which the historical evangelical preaching of the gospel of repentance and faith, followed by works, must reach.