There needs to be an investigation into who is paying to spread the word in Guatemala, etc., that they should be sent here. Who is paying off the Mexicans (who otherwise are aggressive in their border enforcement) to look the other way as they transit. Follow that money and you'll find out who is funding the subversion of the nation.
I agree completely that there needs to be an investigation. Who is calling for one? I don’t hear anyone demanding an investigation...the most I’ve heard is that 0 is lawless.