IMO, if Mexico doesn’t prevent the invasion from getting near the US border, it’s assistance in enabling the massive border attack should be considered an act of war against America.
I think Mexico is coming around to a new reality. If Trump dumps NAFTA, that’s a big problem with the new middle class that exists in Mexico. Second, a whole bunch of non-Mexicans (the chief folks crossing now)...are stuck on the Mexico side for long-term. Add in the fact that Trump may deploy troops and make the crossing areas more risky.
I think the reaction now will be Mexico building a fence or wall against both Guatemala and Honduras....or they just turn the drug cartel guys loose on the non-Mexicans.
None of this is good for folks who routinely cross the border (on both sides) in a legit way.....it just makes the whole border more dangerous than ever.