The snarky answer to your question is quite frankly, ignore them. Your friends will still be your friends without Facebook. I have personally NEVER been inconvenienced by not having an account, and the sheer abundance of communication mediums on the web today makes it so easy to stay in touch. Between just Email, Hangouts, and Texting, I am still in touch with everyone that matters to me, and they know how to reach me. It can't possibly be an inconvenience to text me since they're already almost certainly on their phones too.
You already hit step one of this - you KNOW Facebook is manipulating you. Step two is just to stop letting them.
2. Delete your FB account. Delete the app from your phone (if you have it)
3. Mark any email from FB as spam
4. Block all FB domains at the router level