Mexico ran up tremendous debt to Euros during Santa Anna dictatorship. Folks were coming calling. Spain, France, Brits parked in harbors ready to collect. This allowed them to settle the debt, except France who wanted empire.
At the end of our Civil War Sheridan took 50,000 armed US soldiers over the border to expel the French.
Hippies have tried to twist our relationship with Mexico since the 60s. Tough to make money if people think we're frens.
Just how the race peddlers work: division.