Do you know the reason why certain peoples in the USA are pro-illegal immigration?
It is not so much that so many people are "pro" on illegal immigration as it is more that they understand that people look for a better life. And if the situation were reversed, we recognize that we might seek a better life by illegally entering Canada or Mexico.
I have thought about parents maybe preferring to leave their child in the hands of U.S. authorities when the adults are caught by Border Patrol or others, rather than have them go back with them. But I had never thought about the Church being involved. It makes sense.
But could it also make sense that people who are trying to be "like Jesus" (at least the way they were taught about Jesus) are just trying to help people and the Church might not be concerned with borders? Kinda like Santuary Cities- which just means that they can report crimes without their immigration status explored, or send children to schools the same way.