Do I want clan family functionality? Absolutely! However, what I gather from SC is that they consider it to be too hard and have largely written it off. With that in mind, I think that an acceptable interim step would be to allow invites from bookmarked clans.
At present, all invites from friends come through regardless of how the "Clan Invites" button is set. If that were simply expanded so that any invites from a bookmarked clan would come through also, then people with no desire to change clans could set their invites to off and be removed from the recruiting pool also. That would save a ton of time and wasted invites.