I have no problem with voluntary on-call duty that is both paid handsomely with overtime rates, even for salaried employees, along with bonuses that make sacrif

I have no problem with voluntary on-call duty that is both paid handsomely with overtime rates, even for salaried employees, along with bonuses that make sacrificing free time worth it. That's how on-call duty works in many European countries, by law, and in unionized industries and companies here in the US. The company didn't push for on-call duty at all for our EU developers, because that would cost the company more money for higher rates and bonuses. Instead, on-call duty was the responsibility of US and Canadian workers, because the company didn't have to pay them for the extra burden and loss of free time. EU developers worked on the same products, and could have done on-call duty with us, but that was never on the table for reasons that had nothing to do with developers being familiar with the projects they're supporting. It was all about reducing costs and getting free work out of developers dressed up as "best practices" from Google.