Meh, I don't really care too much about my culture, mostly since even I don't fully understand what it means to be a "true Mexican" when the "real Mexicans" keep shifting the goalposts constantly.
First, you must be born in Mexico, if you were born in some other country that isn't the motherland but your parents were. You're a pocho and don't really count.
If you were born in the motherland but speak broken Spanish, because you learned it as a second language or forgot it as you learned another, you're a pocho.
If you were born and speak Spanish just like they want you to, but you moved to another country to pursue your career (take Alfonso Cuaron, director of Gravity, for example) you're a sell out and not a real Mexican because you didn't "spread[force] the culture", like Guillermo Del Toro.
If you don't like certain shitty foods (capirotada, mole, tacos de moronga, atole, tripitas), you are staining the name of the dumb primitive natives (and I'm not talking about Mayans/Aztecs/Incas either)
If you don't like Soccer(or Football, fuck you both sports suck anyways), or have some sort of machista attitude then you aren't a Mexican.
tl;dr, I personally laugh too hard when A. Wyatt Mann pokes fun of Mexicans since I stopped associating with them quite a while ago. Let the white man appropriate our gargoyle like women with a taco in one hand and Tequila in the other whilst wearing an oversized straw hat since there isn't much that hasn't already been said about Mexicans…