Refugee flow to Mexico, Mexicans little inspired by the migrant flow from Central America

When I saw the endless stream of Central American refugees, I was deeply shaken and I wondered, how can a poor country like Mexico handle this?

Of course, the refugees were initially provided with the essentials. Soup was cooked, clothes and water were spent. Many refugees were transported by trucks and buses. Human, compassionate behavior.
But now the refugees are jamming in front of the fence. The border towns are not only outraged by the ever-growing number of refugees, no, the inhabitants are sometimes downright angry. Mexico can not afford refugees, at least not to that extent. I'm curious how it goes on.