Right off the bat there's multiple strawmen in the opening quote.
"Farmworkers here today aren't taking American jobs." But of course, illegal aliens aren't -by far- only farmworkers. The American jobs they take- and dumb down the wages of- are many: construction, childcare, delivery, food services, landscaping, janitorial, manufacturing, meat packing, agriculture, etc.etc. etc...
"They work in unbearable situations." So DON'T COME HERE to work in unbearable situations. The willingness of people here illegally -and therefore in a precarious position that allows employers great leeway to exploit them for profit- is what helps
create and perpetuate unbearable conditions in the first place.
80% of US farmworkers are *gasp* US citizens or legal aliens. Only 20% are illegals. So the so-called 'challenge' is a big FAIL by default. US citizens are already doing the majority of US jobs, including farmwork. Gee, there's a shocker!
I also have to wonder where this silly idea ever came from that only illegals do any hard work in the US, and therefore we must all bend over and let people with an agenda flood the country with the third world,and then grant blanket amnesty (so of course, I guess the 'logic' is supposed to follow- they'll continue to do all the hard work.)
Do these spoiled (+ ignorant, or just plain stupid?) people ever fly over the country, happen to look out the window, and *really* imagine to themselves that all those COUNTLESS fields and farms down there in the heartland are all being worked by illegal Mexicans, or sitting idle if they aren't? No American is a farmer anymore. No one remembers how to plant things and pull anything out of the ground, off a vine, or out of a tree. All those farms are just waiting
desperately for floods of exploited workers to pour into them, if only we can invite them in fast enough.
Since 80% of the farming jobs are being done by US labor: how exactly does it follow that an illegal alien can't possibly take a US citizen's job? Oh that's right, we're all supposed to believe all those farmers and US farm workers are doing something that should be BENEATH them, and therefore done by -YES-, a field full of slaves. If you don't think so, you're obviously a racist.