> So for me "stop using Facebook" sound similar to saying "burn all of your family photos and throw away your ability to talk to many of the people who are important to you."

You just aren't looking for obvious alternatives that would still allow you to do all that privately. Keep your family photos offline on your own hardware. Create a contacts list on your phone (ideally de-Appled and de-Googled) and text people on Signal and/or create group chats. Tell people you are leaving Facebook because it is an evil surveillance machine, and that you can be reached on Signal, email (self-hosted) or phone.