Guest Worker Program?

It is now an "institution" for some employers to have foreign nationals come into this country to work for low wages and few benefits. However, Americans are asking for trouble when they propose to allow foreign nationals come in for three years at a time. That is residency, not a "guest worker" program. Allowing a three year stay is inviting foreign nationals to come in and get "comfortable", raise families--in other words a three year visa is encouraging a "backdoor" immigration program. A six month visa is more than enough time for any "guest worker" to come in and work and get the crops in etc. As usual our legislators and administration is not thinking about the repercussions of their actions.