8-12 million is a large number anyway and 20 million is still within a very high range but sometimes, like 30 million, seems like it's going beyond the range that actually turns off the positive impression of what's trying to be accomplished.
When you consider that last year alone, 1.2 million were caught and turned back, and that for every one that is caught, 2 or 3 get in undetected, last year there may have been 3 million new illegals added to the number.
That's been going on for years.
I'm not so sure it's not close to 30 million.
In any case, no one really has any idea.
Even if it's "only" 8 to 12 million, when each of those is given amnesty, they become anchors to bring in their family members.
10 million x 5 or more family members? How can we assimilate 50 million or more people in a short time, especially since many of them don't want to be assimilated?
The nation is rapidly becoming balkanized, and will pull apart at the seams.