Like today, there were over 1 million Latinxs living in NYC in 1973 (1.3 million. Latinx/Hispanics made up 20% of the total population in NYC throughout the 1970s). With that said the whole "Salsa Explosion" or Salsa Boom" narrative that's been perpetuated since the 1980s has been greatly amplified (exaggerated). It may have seemed that way to observers who were in the thick of it, and why certain U.S. multinational record labels took a shot by signing "Salsa" artists to record deals, who were "projected" to crossover and produce crossover $$$. But those deals fizzled what with the lackluster results in commercial sales. The first bilingual television show "Salsa" (1973) was canceled shortly after its pilot. Neither "Our Latin Thing," "Salsa," "The Last Fight," or "Crossover Dreams," all of which were executive produced by Jerry Masucci, made any box-office splash and were considered bombs (based on the numbers). Salsa promoters Ralph Mercado and Ray Aviles began to produce non-Salsa related concerts. Latin NY Magazine's last edition in 1984 featured the musical group Menudo, since the market for Fania or Salsa product had long shifted elsewhere.
Much of the spin to all of the hype over "Salsa" in the 1970s was more political, than for having a valid argument. In the pursuit of relevance and having leverage to bargain with, Since I was a kid I've been hearing the same line every decade. "Latinxs are the fastest rising minority in the U.S." It's not so much that it isn't true because the numbers don't lie. But that fact hasn't altered U.S. Latinos place in U.S. society. It's just [proven over time to be] an empty talking point. As much as has been garnered in sports, entertainment, politics, education, business, arts and sciences, etc, U.S. Latinxs are invisible in U.S. media. Less than 5% are represented on TV or Film. Even though there are more than 60 million throughout the entire country. Which means Latinxs are not particularly great at rocking the boat or ruffling the feathers of the establishment. But we sure are leaders in assimilation. Not just culturally, but systematically. We defend the very systemic networks that keep us invisible.
"Salsa" has never been a truly mainstream music in the USA with the exception of the 1940s decade. The eras before and after the 1940s paled in comparison to the level that decade achieved. Yet the "Salsa" generation of the 1970s would have everyone think Salsa was born inside of a club in 1971 off 8th Avenue in NYC, and went around the globe for the first time ever as a result. What else are they going to argue? That Pimpinela, Raphael, Los Angeles Negros, Malo, Santana and Julio Iglesias were more popular?
When you see something being dominated by or monopolized by one individual (Jose Curbelo, Jerry Masucci & Ralph Mercado) it's because the market is a niche one. Meaning small. The market for "Salsa" music today has remained the same as in the 1970s. Colombia, Venezuela, Peru, Panama, and sprinkles in the Caribbean (D.R. & P.R.). The market for dancing to "Salsa" has always been greater globally. But the music consumption for "Salsa" in North America, Asia, Africa and sub-Saharn Africa (middle east), Australia & Europe is dead.