But deeper doesn’t necessarily mean easier. A few weeks ago, Mr. Mohrer met with the leaders of the strikes at his office on West 27th Street in Chelsea’s gallery district. He said they had a frank discussion about the rate cuts, which could be rescinded if the cuts do not achieve their goals. While he was not explicit about what those goals might be, he insisted that the conversation had been useful. “I want to do this regularly,” he said. “Giving drivers the opportunity to speak to me and my staff can result in more rapid change.”

The strikers found the meeting less successful. “It was a joke,” Mr. Diallo said. “They treated us like jokers.” From his perspective, Mr. Mohrer offered no concessions on the cuts and was firm on only one position: that there would never be a tipping option on Uber’s app.

And that was the message Mr. Krasniqi delivered to the crowd in Queens on Super Bowl Sunday. Cupping his hands to his mouth, he reported on the meeting, then told the drivers to call their friends and relatives who also worked for Uber and urge them to stop driving.

“That’s how we built them up — with our friends and families,” Mr. Krasniqi roared. “And if we built them up, we can destroy them!”

It is hard to tell at this point just how serious the threat to Uber from sustained unrest would be. The challenges of organizing a work force composed of men and women of disparate ethnicities and languages loosely connected by a cloud-based app are significant. “If the drivers can come together in a block causing problems, they might get something,” said Evan Rawley, a professor of strategy at the Columbia Business School who studies the taxi industry. “But this is not West Virginia coal miners who all grew up together in the same small town.”

Uber has been somewhat clumsy in dealing with the problems with its fleet. In a stroke of unfortunate timing, Wired magazine published a 3,000-word treatise on Uber’s new corporate logo one day after the drivers went on strike outside its New York office. It was an inadvertent study in tech-world navel-gazing: as hundreds of immigrants were splashed across the Internet attacking Uber, Wired described how Mr. Kalanick had been working for two years on the logo, immersing himself in organic color schemes and kerning.

There is a potential wild card: Class-action lawsuits have been filed against Uber, including in the federal courts in Brooklyn and San Francisco, which seek to make the drivers full employees. If the suits are successful, they could cripple Uber’s business model, though some legal experts have said they are skeptical that the drivers could prevail when they use their own vehicles, and decide themselves when and whether to pick up passengers.