You know - the big pink elephant in the room that all seem to want to overlook -
Even if only freedom-loving, hard-working, saintly people were crossing the borders illegally, this would be less than desirable. Why? Because it completely ignores the reason they are LEAVING their country of origin. Mexico is a hell-hole. Most of the other common Central-American nations other Hispanic illegals come from are also 3rd-world trash heaps. So even if these illegals were such great folks - they are leaving a worse void in their home nation.
By coming here, they are turning their backs on improving things at home.
And to take it farther - the reality is - many criminals and other troublemakers make up a good chunk of the illegal population here.
And we haven’t even broached the whole issue of unemployed Americans... hovering officially near 10% (the real number is likely higher). Yet there are still millions of illegals employed across this nation.