Penalties need to be made more severe.
Simply sending illegals back is not slowing them down.
Punishment needs to dissuade bad acts.
Throw law breakers in jail.
Get Mexico to pay for it!
For every Mexican citizen breaking into our country,
we incarcerate for 1 year (1st time caught),
we incarcerate for 2 years (2nd time caught),
.....
We deduct the 100% of the incarceration
cost from whatever we give Mexico.