The last few days a "caravan of refugees" of somewhere around 1,000 has been front page news on Fox for several days, coming up from Central America, passing through Mexico apparently unrestrained in their move toward the U.S. border.

Yesterday (4-3-2018, Tuesday) both Tucker Carlson and Sean Hannity both had a lot of statistics on illegal immigrants. About 59% of all illegal immigrants come from Mexico. About 15% (probably higher now, since that most recent statistic) from Central America. Including the Caribbean and South America, Hispanics are collectively over 81% of all illegal immigration.
Carlson also quotes a more recent version of a poll I cited years ago (as sourced from Buchanan's book STATE OF EMERGENCY on illegal immigration) that the vast majority of Mexicans who immigrate to the U.S., both legally and illegally, have an overwhelmingly negative opinion of the U.S. and Americans, whereas Americans polled generally have a favorable opinion of Mexicans as hard workers with good ethics. Despite that Mexico is a very corrupt government that is overrun by drug cartels.

Carlson also cites facts about the racism and brutality of the Mexican government, run by a white elite who are mostly educated in U.S. Ivy League schools, even as the Mexican government accuses the U.S. of "racism" in the U.S.'s deportation of illegals.
And less clearly than I said it previously, that the Mexican government, while poor relative to the U.S., is actually quite wealthy, the 40th most wealthy country on earth, hope to about 50 billionaires, and that its two largest sources of income are (1) oil revenue, and (2) wire transfers of cash from Mexicans in the U.S. (legally and illegally) back to their families in Mexico. That the Mexican government is more than capable of providing welfare and education to its poor, but instead encorrages the discontented to (legally AND illegally) immigrate to the U.S.
And Carlson even shows two Mexican government ads and brochures showing Mexicans how to illegally cross the border. Buchanan further, in STATE OF EMERGENCY, tells of a Mexican government brochure that beyond crossing, even instructs illegals how to apply for welfare benefits once in the U.S.!