That'll stop and reverse itself once we close the border and send the illegal invaders back home...
And while the US Catholic church is growing as a result of illegal immigration (Hardly something to brag about), that by default means the Catholic church in those countries is shrinking.
It’s a version of sheep stealing. The churches aren’t really growing, just constantly trading members.
New people coming in? Awesome!
Other people leaving? Well, they weren’t really part of our church anyway.