Comment by keyle
Talk to your manager and try to explain that it doesn't work for you, try and approach it like it's not reasonable in your case to demand 5 days a week - they talk about whenever humanly possible in the memo, I didn't read it in details, but you might be able to sway the fact that it won't work for you your way.
Do not mention quitting over it though, or you'll definitely go straight into the HR crosshair.
If you're done with Amazon, apply to local startups. Likely you won't get the same kind of money, but you might be happier and "you've got that on your resume".