I grant you, you have numbers on your side. The Muslims do as well. I'm stuck with YOPIOS cereal and reading Matthew 7:13.
I don't.
I'm considered a baptized Catholic, because Catholicism teaches *once a Catholic, always a Catholic*, so anyone who was ever baptized Catholic is counted in their numbers, even if they've left the church and haven't stepped foot in it in decades.
And I know of several Evangelical and Protestant churches which are chock full of former Catholics, all probably still being counted on Catholic roles as part of that 1 billion strong.
Catholics themselves admit that the majority of those baptized are not practicing Catholics. They consider those who support abortion to have ex-communicated themselves.
Except for when they want to brag on numbers. Then they're part of the flock.
One billion strong my.... er ... foot.