I would have just said that his opinions are different than yours. I don't consider myself racist, disgusting or unamerican, yet I happen to be against immigration, as it is currently practiced. The majority of non-citizens taking up permanent residence in our nation today are illegals. Their first act upon entering our country is to break the law. I don't find this to be a desirable trait for someone entering my country.
On every anti-immigration post at FR it is inevitable that those against are branded racist and are reminded that this is a nation of immigrants. I'll ignore the racist thing (it's so over-used that it is now irrelevant) and agree with the 'nation of immigrants' thing. Past waves of immigrants were needed to populate this nation, but the wide open spaces are long gone. Past waves of immigrants assimilated within a generation or two but that is not the case anymore. Past waves of immigrants supported themselves but now we (taxpayers) do. The argument that these immigrants work to support themselves may be true if a single individual comes here, but saying that a non-skilled day laborer pays the way for himself and the large family that always follows is bull.
Immigration serves two purposes these days. It gives business and the wealthy a subsidized pool of hardworking laborers, maids, gardeners, day care workers, servants, etc. and it increases the numbers of supporters of the massive, centralized welfare state. The people that are allowing the invasion of our country are isolated from all the negative effects. Outside their gated communities however, the middle class pays the price. High taxes, crime, lowered wages and lack of entry-level oppurtunities for unskilled citizens are just some of the negative effects.
I see from other posts that you are American of mexican descent. That makes us fellow countrymen. Try to understand that I don't hate mexicans, eastern europeans, chinese or any other group seeking to come here. I do, however want to keep my country and my culture from becoming a mirror image of theirs. I'm sorry that other countries are badly off but it's not my fault and I damn sure shouldn't have to pay for it.
No doubt, in 100 years Mexican-American snobs will be looking down their noses at [insert next immigrant wave] and making dire predictions about the decline of American culture.