How can amnesty for illegals work: EU vs. Spain on Canary Islands fiasco?

Question

http://blogs.telegraph.co.uk/foreign/davidrennie/sept06/renniespain.htm

"Spain granted the amnesty [to hundreds of thousands of African migrants] without first controlling black-market labour or consulting EU leaders, enraging countries like Germany, who suspected that many of the regularized migrants would soon be turning up in their country, thanks to the border-less Schengen zone.

"It also seemed likely to be what immigration officials call a 'pull factor' for fresh migrants."

So: wouldn't it make more sense to address the loss of jobs in Mexico from US crop subsidies paid for by the US taxpayer, than have the US worker suffer from lower pay, lost jobs and cultural dilution?

Or what? ID cards? Real penalties for employers who hire workers with fake IDs? Limiting crop subsidies to family farmers rather than giving them mostly to agribusiness?

Answer 1

they should be penalized

Answer 2

Well, I guess it's up to the neighbor countries to build up borders, then...

Answer 3

YOU CANNOT HAVE UNLIMITED MOVEMENT OF LABOR THAT'S HOW PEOPLE GET HURT