Thank you for this perspective.

There is no worse thing that, after so much work, feeling that you have no control over your situation and you have no margin to improve it, without significant additional sacrifices.

This crystallizes how I feel, and how many of my peers feel. We're all going to escape with our degrees, but many of the problems that arose because of the points you mentioned are completely unnecessary -- we can drive science forward and train the next generation of researchers without subjecting them to this.