[rmnunez]

I'm not sure what I can say, your comments are all over the place. Undocumented Mexican immigrants in the US are a burden on the infrastructure and social services there, but its not clear whether that burden is greater than the overall benefit derived from the work the immigrants do.

Since we are dealing with undocumented immigrants its hard to calculate whether they are more of a burden or asset. We don't know what the immigrants do, how much they make, what activities they engage in or the services they use. We know remitances to Mexico rose beyond $23 billion last year and that this is a fraction of the income the undocumented earned, we know in the US they are paid 8 to 10 times more than they'd get for the same work in Mexico. We know they have already contributed over $7 billion in unaccounted for Social Security payroll deductions to other people's accounts.

On the costs of educating undocumenteds children in public schools or for the medical treatment of immigrant workers, the data is even less clear. Whatever costs must be reduced to some degree by efforts among the undocumented to conceal their presence, they don't make use of some services because these require the beneficiary somehow identify themselves and doing so would reveal their unlawful presence subjecting them to deportation. I've already noted how often Mexicans regain consciousness after an accident chained to a hospital bed, with deportation to follow as soon as they are ambulatory again.

The illegality in the undocumenteds condition stems exclusively from the way they crossed the border and usually this is the only unlawfulness the immigrant has ever carried out. Undocumenteds cross irregularly because they can't overcome the administrative complexities, delay and costs associated with compliance. Half the trouble is in securing the documentation the Mexican authorities require to issue a passport, the other half stems from the complicated regulations the US immigration authorities require. Crossing the border without the formalities is not the same as burglarizing a home for many reasons; many do it, it is widely tolerated and even encouraged, authorities don't pay attention and even facilitate the process, they do not enter to steal and they contribute substantially.

To acquire citizenship in Mexico united statians only need to; a) apply for a residence permit before whatever condition of their entry expires, b) renew that residence twice (once a year) and either marry a Mexican, have a child there, establish lineal kinship with a Mexican ancestor, or do something great for Mexico and express the interest in acquiring citizenship, or c) just maintain lawful residence for 5 years.

To travel to Mexico with a visa is much easier than it is to the US, there are no quotas, they don't demand letters from employers on the impact of the visitor on the labor market, background checks don't go beyond checking wether the visitor is on the list of US State Department precluded travelled (about 350 thousand Muslim names).