https://www.groovypost.com/howto/facebook/download-copy-all-facebook-data-pictures-video/
https://www.cnet.com/how-to/quitting-facebook-download-your-data-before-you-go/
https://heavy.com/tech/2014/02/batch-download-facebook-posts-how-to/
https://www.pcmag.com/how-to/how-to-download-your-facebook-data-and-6-surprising-things-i-found
That’s excellent.
Once people get off they need to stop facebook following them and block them.
Facebook will follow people who are not members and they will get lots of links to bring them back.
Free tools on this site
https://www.njmza.com/take-action