Expecting engineers to refuse and get themselves fired or even finding another job is not good advice at all. It would be far better advice for people with like minds remain in a company like Google and collect data, share knowledge or information, and maybe even just not make certain improvements, etc. it is always far better to have someone on the inside than not. This self-righteousness of refusing to do something in a system that will hardly notice your protest for more than a day, is utterly foolish. These organizations need to be infiltrated and smartly, using intelligent methods report what is going on. This monster cannot be slayed from the outside and time is running out before tech companies totally remove the human threat vector from the system.