Well you're kinda missing the point that this was devised by the US government.
"The roots of the current crackdown lie in the political furore unleashed last year by the arrival in the US of a wave of unaccompanied Central American children and undocumented families.
The Mexican crackdown has clearly been devised in tandem with the US government. Thomas Shannon, counselor to US secretary of state John Kerry, told the Senate appropriations committee in July what the US government planned to do to prevent a repeat of the surge. One of the main planks of the strategy was “improving the ability of Mexico to interdict migrants before they cross into Mexico”
President Enrique Peña Nieto announced the crackdown in July 2014, within a broader policy package called the Southern Frontier Programme. Hundreds of migration agents were redeployed to the country’s southern states.
Such efforts may have driven down the number of migrants reaching the US border, but, human rights activists charge, it has done nothing to address the desperate poverty and rampant violence in countries like Honduras and El Salvador, and risks creating a new humanitarian crisis in Mexico as well."
Mexico's migration crackdown escalates dangers for Central Americans | World news | The Guardian
So I guess your point is keep doing what we are doing in partnership with Mexico and just ignore the humanitarian issues?