Its quite reasonable to not support your employer if there are disagreements. But one might be at the wrong job in the first place then, although not all have the luxury to choose. That's why there are unions and strikes and stuff. It's quite strange Amazon would fire them. Google didn't fire anyone for not supporting or cheering for various government work. But I guess, warehouse workers have less rights/power, and that's what this comes down to. Which strangely enough might also be the reason the went on the streets in the first place.