We don't really know why the Mexican government has encouraged emigration from Mexico to the United States. We don't really know why liberals make it so hard to regulate illegal immigration. Victor Davis Hanson calls the immigration phenomenon a virtual Manhattan Project, whose outcome we can only guess at.
My guess is that the Mexicans in the United States will disappoint the Mexican government and US liberals. That's based on the three Mexican-born Americans that I know personally. Let's call them Jose, Juan, and Joaquin.
Jose is in his fifties, and waded across the Rio Grande as a youngster holding a basket of fighting cocks. He met his uncle at a store close to the border and then disappeared into the US. His family worked in the Yakima valley picking crops, and he seemed to enjoy the experience. Now he works as a budget analyst.
Juan lives in the Seattle area and works for the government. He works all the overtime he can, and when he's not working for the government he helps out at his brothers' nursery. One of over ten children, he worked as a youngster selling chiclets on the street in his hometown in Mexico. Unlike Charles Dickens, he has a positive memory of his child-labor experience, for he knew he was helping to feed the family. He now owns his own home and visits his home-town in Mexico by driving down in the gigantic family Suburban, complete with wheel spinners. His children seem to talk and act like regular native-born US children.
Joaquin is an upper-class Mexican, with an advanced degree and a thriving career selling services to municipal governments in the US. Of course, he's always been fully documented.
Here's my take on illegal immigrants. They are going to end up a dreadful disappointment to the class warriors and the race warriors here in the US. Opinion polls already show that Hispanic voters are not particularly oriented along ethnic lines. They vote their pocket books. As soon as they get established, they start to vote Republican.
That is about what you would expect. The two rigidly Democratic ethnic groups, blacks and Jews, vote 90 percent Democrat because their leaders have successfully frightened them with the race card, for blacks, and the Christian card, for Jews.
Some time in the next generation, the blacks and the Jews are going to start leaving the Democratic Party in battalion strength. When they do, we are going to have to worry about something else. Maybe it will be the monolithic Democratic Muslim vote.