That doesn't mean each individual part of FB is evil. I'm sure there are some good-willing people and a great projects going on inside. But I could never live with myself supporting a product like this, even just by association.
You think Facebook has a more evil product than, say from the military industrial complex, tabacco or big oil? Their products kill people literally every day.
I've been approached by FB recruiters, or their bots probably, and simply ignore them. The way I determine a gut reaction answer to "would you work for X?" is how you would feel answering when someone asks what you do for a living. I'd feel queasy saying I worked for FB because I feel that they indirectly cause massive harm to society for profits.
Does oil kill more people than lack of oil though? How many people would starve without synthetic fertilizers (made from oil) and without oil-powered farming equipment?
I also got a call years ago from a company once to develop pr0n web sites for a pretty good annual salary (around 200k base), but turned them down after my interviewer kept laughing during the interview... I felt the work environment would be too distracting on a daily basis... :/