Sorry, but I simply don't believe that "the people want it". If they did, the House wouldn't be catching hell about securing the border, and the Senate wouldn't be back-pedalling as fast as they can about "the fence".
Pollsters lie in the way they formulate questions, so I take any polling data to that effect with a whole shaker full of salt.
But the People don't want interior enforcement, unless you ask a question like, "do you believe everyone should obey the laws?"
In my state, there are very few illegals (very few immigrants of any type), so people will support action against people who they don't know.
But in most of the country (including Indiana), good, solid, wall-building and law-enforcing Republicans will not tolerate any law which would be bad for Jose who cuts the grass and Marta who wipes up the baby.
Not gonna happen. Wouldn't be prudent.
And Rep. Pence knows this very well.