I'm not going to quit but I'm not going to do any extra work. I will work at a reasonable pace and whatever I get done is what gets done. If that's not good enough for them then they can fire me. I'll take the UI and take a 6 month vacation, or longer, then find a more reasonable job.
This is kind of my attitude as well. I can always find another job. Or go into business for myself. Or join a friend/colleague and start something up. And in the meantime, take a 6 month to 2 year paid vacation.
I am currently in the middle of telling the current employer to "take this job and shove it". Going from private employer to public, and getting over 3 extra weeks paid time off, a decent raise, flexible working hours and options, a pension (if I planned on sticking it out), and better benefits.
The current employer has had the following attitude for the last three years: "You employees have no better option than this company. I can point to two or three competitors (out of dozens) who have had pay cuts more severe than yours and have no benefits just like you. So don't expect a raise or a bonus any time soon. Even though we are profitable, we don't foresee changing your compensation soon. But eventually we will, someday. Just feel lucky you still have a job." This is not hyperbole, but rather paraphrasing from quarterly updates and private conversations I have had with management. In the meantime, our company has shrunk in half, with roughly equal numbers of layoffs and people quitting. Every single person who has quit has gone on to much better jobs with higher salaries, raises, bonuses, benefits, etc.
If you have skills, abilities, and confidence, there is no reason to wake up every morning and be force-fed BS all day.