It would be fine by me if immigration were at population replacement levels, which they're currently far exceeding. In the 1980s we took in 500,000 a year and I saw no problem with that.
I like the prospects of half a billion people operating under the wealth creating engine of liberty.
Opinion polls show that better than 80% of the people disagree with you. And sooner or later the Wall St. Journal/libertarian view of open borders will be cast aside.
Should border crossings from Georgia to Florida be regulated? Why or why not?