Immigration from one country, Mexico, is 2.5 times that of many countries combined.
I've taken the figures from the above table at cis.org and graphed them.
Note the sharp increase in immigration from Mexico and how that differs from all other regions' increase. Note also the sharp decline in immigration from Europe while all other regions have increased.
Roughly 63% of illegals are Mexican.
Do the math. As of March 2010, 11.2 million unauthorized immigrants were living in the United Stateshttp://www.pewhispanic.org/2011/02/01/unauthorized-immigrant-population-brnational-and-state-trends-2010/
Then see Figure 2 at http://www.pewhispanic.org/2011/02/01/ii-current-estimates-and-trends/
The main article is at the first link. Be sure to check the Appendices.
Do you not understand the huge majority off all this is coming from the south heading northbound?
Are we supposed to care if the huge majority of illegal aliens are coming from Honduras, or El Salvador or Mexico?
And who is it your own govenrment aids, abets and supports at the expense of middle America, to the tune of hundreds of billions every year?
Is it people entering illegally from Canada? The Swedes? Australians? The British? The Germans? The French?
Of course not, the huge majority and the huge costs inflicted on the American tax payers are coming up from all points south, like El Salvador, Columbia, Mexico etc..
If the Chinese had a land bridge here, they too would be undermining, compromising and choking off our entire system. No?