The whole point though, is that while all of us Christians sin, by denying or rejecting a teaching, even some teachings, for anything from one event to a lifetime of denial, doesn’t mean that “The Church” does so.
Also, and I fear this has not been recognized, is that the Church is not a democracy. The fact that “X percent’ of Catholics in a given day, week, month, year, decade, whatever engage in a given sin does not again have anything to do with the teaching itself.
To put it succinctly: What is true remains true, even if nobody believes it.
What is false remains false, even if everybody believes it.
The number of Catholics who engage in or support abortion means nothing in the sense that it does not ‘negate the teaching’ or somehow lessen the teaching. It of course means everything to the individual who sins, and who we hope will repent and confess.
But Saying X number of Catholics does something sinful is like saying the sky is blue, or 2 and 2 equal 4; it’s a fact of life that if there is free will for a person to choose good or evil, there are going to be times when a person is liable to choose evil, as well as times they are liable to choose good, and they are especially liable to choose evil when they have not been well taught, or when the ‘secular’ teachings are evil and the pressures are high.