Your insistence in maintaining some relationship reminds me of the old song, "How can I miss you if you won't go away?"
His family didn't have to abandon you, just because he told them to. They're free to do whatever they wish, and they wish to pretend you're the problem. It doesn't matter how much you want to stay connected to them, they have the right (however selfish, stupid or misguided) to include or exclude anyone they wish.
No contact means just that:no contact. You want to look like the bigger person by continuing to reach out, go ahead. It seems to hurt your feelings, but no one here can stop you from doing what you want to do.
No former date, bf, or former fiance' ever wanted to continue as 'friends' with me unless 'friend' was code for 'booty call.'