I’ve been to Mexico. Sometimes people there try to mimic your accent and poke fun at how you sunburn so easily.
Back in the US if you were to do similar to a Mexican, you’d be accused of racism for mimicking their accent or making fun of some part of their physiology they cannot change.
It’s a hard sell to say you feel like your heritage was cause for grief when you come from a superpower, and the richest country in the world. You may individually be not well off, but we’re talking about group properties.
Yes. Mexicans have not installed institutions that create and perpetuate widespread discrimination, prejudice, and harm to Americans but the opposite is true.
Punching up or down isn't about the relative superiority or inferiority of groups, it's about the human made power dynamics that exist between them.