Working for Facebook is a morally bankrupt position. If you are an engineer you have plenty of job opportunities available to you and there is no excuse for you to continue contributing your labor and time to a wholly malignant organization. At a certain point one has to ask how we as an industry will start dealing with those who continue to take a paycheck from Facebook even in the face of constant and horrific evidence of wholesale ethical violations and negligence.
Look friend. If I lose my job, you aren't going to do anything to augment my lack of income. You're not going to do anything to provide health insurance. And you're not going to do anything to help me find new employment.
There is no "We".
Here's an idea. If this topic is something that you feel is important, then perhaps you can set aside half your income to a general fund to help provide benefits for employees who leave facebook for morality reasons. Maybe if it gets enough momentum others will also provide funds. Given enough time perhaps this will help the "industry" to become more ethical.
You know what's not going to convince anyone to leave facebook now? Trying to setup some sort of ad hoc lynch mob to "deal" with people who are trying to pay a mortgage.
That’s not how you change the world.