Since 2007, more than twice the number of immigrants overstay their visas than cross the border. Of those coming across the border, 18% are seeking asylum. So, illegal immigrants crossing the border number only 218,820 per year with over 700,000 overstaying their visas. 
The Department of State would be the agency to deport those illegal immigrants. But no one is talking about increasing their funding. In fact, no one is talking about visa overstays at all.
So these illegal immigrants have to be thrilled. They are safe from deportation. And they didn’t have to trek miles to the border and be separated from their children. Life is easy for them and will likely remain so.
 Carmin Chappell, Most illegal immigration doesn’t come through the Mexican border where Trump wants to build his wall, CNBC, January 8, 2019.
 Richard Gonzales, For 7th Consecutive Year, Visa Overstays Exceeded Illegal Border Crossings, npr, January16, 2019.