At some point a broken system enacts soft violence on people. So it isnt surprising people act out when they think survival is at stake. With healthcare, it really can be. But where is the line? When someone you know dies? 10 people?
It is messy.
Whether or not she was being honest I don't know. But it did make me realize that the broken system has created an all-or-nothing choice for so many people. No punishment or policy could ever outweigh the alternative for them, so you'll never be able to stop immigration, illegal or not.
I'm sure I'm not doing the argument justice, but your comment reminded me of it.
If your goal is a better system, you'll be looking hard for ways to move away from violence, not justifications to escalate it.