by Richard Vasquez  If you listen to what Latinos want, you’ll hear echoes of a seed I helped plant some 40 years ago as a marketer for many of the biggest U.S. consumer advertisers. Among the brands--and institutions--I’ve advised are: Sears, Kia Motors America, Walt Disney Company/ Disneyland, NBC Universal/Telemundo, The California Endowment and the City of Los Angeles. Most marketers in this space came up among the ranks of the ad agency system. I began as a southern California field representative for U.S. Senator Alan Cranston, the legendary moderate-to-liberal Democrat. As part of an effort to understand the implications of an impending seismic shift in demographics represented by the explosive growth in blue-collar Mexican and Central American communities, his office saw fit to hire a Mexican-American kid from a working class, pro-union L.A. family. A portion of that population surge had been spurred by the arrival of immigrants from Mexico and Central America in pursui...