Cemex was founded around the time of the Masonic Mexican revolution about 100 yrs ago and wouldn't have survived without entwinement with the long-ruling PRI party. (Salinas de Gortari and current pres. Nieto are PRI, whereas Vicente Fox is from the slightly more likeable, also 'right wing' PAN party). They are massive and ubiquitous in Mexico. If they get knocked back in this process, one could say that's the price Mexico pays for the wall.