The vast majority of people would a lot more hard-pressed to quit their job on a whim without ending-up with significant problems than their employer would be in laying them off. The power relationship is very strongly skewed here.
So? I am not even sure what your disagreeing with or how you think that is relevant to any points I made.
As for the earlier statement I made, it is true both for chronic work-acquired injuries and for accumulated organ-damage from stress. The perceived relaxation doesn’t indicate rest remotely approaching that sufficient to compensate.
That makes a lot of assumptions such as the idea that work equates to stress and damage. True for some, not for others, again pick a job that offers you the right balance for you. I myself find work fun, I would and do do it for free, the fact people are willing to pay me a bunch of money to do it is simply a bonus.
The heart itself cannot cope with all that much sleep deprivation and stress in a short period (see: https://en.wikipedia.org/wiki/Karoshi). Unsustainable high-effort isn’t sustainable, that’s simply not how human bodies work.
No one is suggesting answering a call or two after hours or occasionally working a little later is the same as sleep deprivation or even a stressor, particularly when it is offset with relaxing vacations you get paid to take.