I guess you didn't watch the final season of Moral Orel.
Though, even with the very downbeat last season I thoroughly recommend you watch Moral Orel. I think you can get some of the episodes if not all of them on YouTube. It is by turns enormously funny and quite dark. It's set in bible-belt middle America, so it is not much like Bojack in setting or theme other than the common thread of how families seem to set up each succeeding generation for their own particular sorrow.