Four questions to you:
1) Other than they being in your country illegally, what negative effects do you see from Mexicans living and working in the USA?
Many of out ERs have closed due to the number of illegals who use them and fail to pay. Trauma centers have closed as well. Birthing centers are overwhelmed. When something is "free" the usage goes up and people bring little Juan or Johnnie to the ER when his temperature gets to 101.0 instead of waiting until they can see their GP in the morning.
2) How can you convince current illegal immigrants to register themselves and join the process towards legal immigration and naturalization?
I can't and neither can anyone else as long as heir activist "leaders" are espousing they come illegally. La Raza, Aztlan, Mecha, et al all want to reclaim the Southwest for Mexico. They intend to do so by occupation. The motto in CA is "Taking back California block by block."
3) How can you change your system for potential immigrants which would make the legal process easier than the illegal one?
As long as the activists encourage them it will not matter what the process is. The only thing that could encourage them would be to shorten the process and reduce the fees. Those will not work as long as there is such a wide disparity in the value of the Peso and the Dollar. Mexicans send billions of dollars to Mexico every year and the influx of American dollars is the number 2 source of income to Mexico.
We also need to stop with the freebies we hand out. I cashier at Wal-Mart and every day I have non-English speaking Latin persons come through my line and buy groceries with an EBT card. Our claims for perishables spikes at the beginning of every month when EBT users of all races and stripes come in, over shop, and abandon the merchandise on the shelves or at the register.
If it is free it will be overused. It would be nice if they would abandon the 5# bag of rice, which we can return to the shelf, instead of the steaks, pork, and chicken, which ends up at the renderer that would be one very large improvement. Unfortunately, they do not see the downside cost to the store of their actions because they have nothing of themselves in the goods. It is free as far as they are concerned so what's the difference if it goes to waste instead of feeding a family?
4) How would you find and deport those who choose not to immigrate legally & What do you do with items purchased and owned by illegal immigrants during their stay upon deportation?
Follow the tenets of the federal and AZ laws. If they are found, deport them; but deportation is futile when we have people like the guy in WA state who was deported three weeks ago and is already back in WA state changed with the murder of his girlfriend.
As for their property, if they can have it shipped to Mexico then that should be their bill. They all know legal immigrants, naturalized citizens, and citizens of Latin heritage who can help them with their property. It is not like they only hang around with and know other illegal immigrants.