the problem is larger than FB. it's rampant in all areas of BigTech and chances are high many here are guilty for working on the destruction of society. See for example Stripe (an "innocent" payment processor) which processes payments for the Proud Boys:
https://www.ourfreedomfunding.com/campaign/19/freespazzo-dom...
https://www.ourfreedomfunding.com/campaign/23/financial-aid-...
See also Cloudflare which is happy to protect such sites as the one above (and has a history of doing so): https://www.fastcompany.com/90312063/how-cloudflare-straddle...
The real problem comes from having a small highly paid and entitled circle of Tech people in the US be the arbiter of truth and social values worldwide.