Interests behind the NO to the Immigration bill

If the bill does not pass, then the status quo prevails and nothing changes. This means that illegal labor will remain cheap and exploitable, which means that costs will not go up. If the bill were to pass, however, then costs would go up a bit as anyone wanting to hire legal "guest" workers would be required to pay them at least minimum wage, but most large employers won't want to pay that and so will continue to hire illegal labor, for which there is no end of supply. And since the bill has no real enforcement provisions with any teeth, then nothing will change. But the large employers don't want any bill to pass lest it lead to greater - and more expensive - reforms later on.