It is illegal to hop a freight train in Mexico, and it is very dangerous. Just getting on and off the trains is very dangerous to life and limb, and many women and young girls are gang-raped on the trains. There are murders and many kidnappings on the freight trains, and many people are robbed on those trains, and various other crimes are frequently committed on them as well.
Besides riding in boxcars (as depicted in that commercial), many people ride on top of the train cars in Mexico, and if it is a long ride, some fall asleep and fall off, others just lose their balance and fall, or are pushed off the freight cars.
There are numerous freight train routes the illegals use in Mexico to get up closer towards the USA. This one shown below is called "La Bestia" (the beast), and the macabre nickname for all of these illegal-alien-hopping freight train routes collectively is "the death train".
It is not at all kind and merciful to support these kinds of illegal and dangerous activities and behaviors (like they seem to be doing in that bizarre commercial), but, rather, cruel, cold-hearted, and uncaring.