Not a Catholic here, but...
...do you have a list of the elect and the non-elect?
Unless and until you get one, might wanna hold off on declaring who is saved or not. I’m sure there are elect Catholics and (gasp!) non-elect Calvinists.
That said, I do agree that numbers mean zilch, zero, nada. Numbers are just numbers. Even Catholics agree with that, when one points out the number of Catholics who veer from Vatican teachings. Suddenly, it’s all about the faithful “remnant.” Might be best that all “sides” stop presuming to take attendance. It’s all meaningless.
And they will be judged by their works (doh!).