which can be seen as the ultimate form of disrespect in the world’s fourth-biggest economy, where workers traditionally stick with one employer for decades, if not for a lifetime.
The fuck are you on about, CNN?
In the most extreme cases, grumpy bosses rip up resignation letters and harass employees to force them to stay.
This is more true. Power Harassment here is a huge thing. In almost all cases, a full company employee legally just needs to give 2 weeks of notice to the boss and HR. Keep receipts, but that's it; there is no more obligation aside from that in 99% of cases. An employer can't just 'deny a resignation' legally. They can pound all the sand they would like.