>>>How are we getting our money back over time?
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>>Through the taxes they'll eventually be paying with better incomes, and the spending they'll be doing and the lack of your future tax money they'll need for medical bills etc. Or, I suppose you can sit and wish them away while paying for their medical bills and other needs forever instead. Frankly I think the 2nd option makes a poor business case.
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>Really. Illegal residents before college, during college, and I'm just guessing here, but after college too. Where is this tax money coming from? What job are they going to get without papers other than mowing lawns, bussing tables or painting? I guess those courses are probably taught in school, so they could be really good at what they do when they graduate. Why would they pay for the insurance - that they can't get - if they get health care for free? Oh wait, you must be talking about some sort of amnesty program. Ah, that will sure discourage anyone from wanting to get in here illegally won't it?

From what I understand, many illegals already do pay taxes this is just going to mean the difference in how much taxes they pay. They will also be spending more which helps the economy. Some of them may even start their own companies and hire others. These things often have a sort of snowball effect.

As far as amnesty, why not? You said yourself they're going to be able to come up with some magical way to stop them at the borders, so it doesn't matter if new illegals are encouraged. They won't be able to get in anyway.