For statistical purposes, why do survey takers care if I'm hispanic or latino?

An accurate picture is important to "customer service." Trying to cater to a certain population so as to welcome them (whether hispanic/latino, white, black, asian, etc), becomes impossible if your decision making "board" has a blind spot due to lack of diverse viewpoints (like not hiring a spanish speaking person to work at an amusement park because the room was filled with monolingual people that never even THOUGHT of the fact that some customers might be spanish speaking or bilingual, or inviting their grandmother to visit from Mexico who has never learned English. The business world has been doing a much better job of this, and having multiple perspectives at the decision making table and gathering demographic data to insure that there is not a population that is being overlooked is the only way to accomplish this. It would be great if our democracy would allow for such representation in our governmental bodies, so similar blind spots could be uncovered. A bunch of white men deciding the state of our immigration laws when they have all lost touch with their families from other countries is a scary thought. They think of immigrants from Mexico as invaders, rather than Grandma, or Aunt Maria, or cousin Jose.