Statistics that go back 20 years show that 200+ people have died trying to come in illegally through the southern border in that time frame.
We could demand that every congressman and senator who didn't vote to do anything to stop this from happening in the last 2 decades to stand trial for child abuse or child neglect.
No, better yet, we could ask that people in these countries, such as the new President of El Salvador, take the personal responsibility to change things, so people will not think leaving is their only hope for survival.