“Latino” like “Palestinian” is a demographic identifier made out of whole cloth to provide legitimacy for another group of people our “government” and politicians can use as power leverage.
It's truly a marxist construct. To paraphrase Mark Levin, if you'd take a devout Christian, midwest 50-year-old farmer, married with three kids who clears about $50-60K per year, and a 30-year-old NYC atheist lesbian womyn's study professor who clears about $100K, the left (and many on the right) would generically lump them both into, "the middle class" when really, their values, circumstances and lifestyles couldn't be more different.
Similarly, you may have older and first generation cubanos in the Miami area, and older long established families of "Texicans" who have all whole heartedly embraced the American way. Then you have the new wave of illegals who simply want to suck at the tit, and they are all generically lumped into the "Latino" demographic.