The official position of the Church on schism is to stay within the Church and work to change it. Accusing people who don't agree 100% with the Church of being Protestants and trying to force them out is contrary to the official position of the Church. For example - nobody went to hell for eating meat on Friday. That was a mistake, and it was retracted. Eventually the Church saw the light on Galileo. And eventually the Church will see the light on contraception.The Christian truths on sexual morality and marriage are in fact core beliefs part of the deposit of faith. Jesus himself speaks of marriage, adultery, purity of heart and the need to not even lust in the heart. Galileo's issue did not relate to faith or morals, and neither does fish on Friday. The Church's "official position" is not to change the truths that are part of the divinely revealed deposit of faith.
Using contraception within marriage is not a violation of anything Christ taught. When Christ spoke of lusting in one's heart, he was talking about adultery. Lusting for your own spouse is not adultery.
Have a blessed day.