On the one side, some would like complete
The danger is that the situation could end up like the old lady who takes in every stray cat with the desire to give them a loving home, but then ends up living in filth with malnourished pets because she is unable to care and provide for their needs.
There are cultural issues as well. Different languages and customs can lead to problems. Are there resources in place to teach English and interpreters available to aid in communication? Rather than just wishing others would conform to our ways, wouldn't it be better to have in place services to teach and integrate immigrants into our culture?
We must find a solution, but it must with love for others just as God has commanded us. He told the Israelites not to oppress the stranger living among them, for they were once strangers themselves in a foreign land (Egypt). Through out the Old Testament God repeatedly rebuked his people for the injustices committed against the poor, the fatherless, the widow, and the foreigner. The stronger is charged with protecting the weaker. (Exodus 22:21-24)
We must not make the mistake of turning this issue into us against them. We are not enemies. There must be rules in place and enforcement is necessary, but certainly more can be done to address some of the problems through education and cultural assistance. A solution is needed that will best provide for America, her people, and those who want to be her people. I don't have the answer and I don't know who does. I do know this is an excellent opportunity for Christians to represent Christ by respecting both sides and seeking a solution with love and compassion towards all.