Installing an ad-blocker does not stop you from supporting FB indirectly. Your contacts, many of whom probably look to you for advice on all things technical, will still see your using FB as an example that it is a good platform. The only real way to change is to lead by example and leave FB permanently. Then foster communication and events outside of FB. Be the change.

the vast majority of fb's usage is in-app mobile. how're you gonna ad-block that?