Well it just might be bad enough to convince more people that we do need a wall, so it just might be useful if he does win.
a Venezuela on our border is not good, no matter how you look at it. Many anti-Marxists will immediately sympathize with the people the Marxists will persecute.
It could be the 1920s in Mexico all over again.
See the movie FOR GREATER GLORY (aka CRISTIADA) to see the way Obrador thinks. Andy Garcia and Eva Longoia star in it. It is historically accurate.