The line about nothing mattering so long as one's heart is pure has a name, not a very good name. It is religious indifferentism. Further, one who appears to create God in his own image and likeness has forgotten that it was God Who created each of us in HIS own image and likeness. See the First Commandment. Repeat, as often as necessary until you get the picture.
God is not offended by altar girls but they are hardly a necessity. Novelty for its own sake, much less for the sake of some phony notion of "equality", is no friend of Catholicism or Catholics.
When women walk away from the Church over "equality", they walk away from the Church. Each has that civil right but none will be justified in claiming that the Church walked away from them.
Your post is yet another proof of the deep need of the American Catholic Church's to be thoroughly purged and purified by the Vatican of its Kumbaya elements, particularly in diocesan or parish authority.