I had a similar experience once in AA. A fellow set himself up as judge of my status and declared that I was not an alcoholic in a group meeting. I thought: Great...even the fucking alcoholics don't want me! But I talked with my sponsor about it and he told me no one is appointed to be the "AA police", so I let it go.
But what a bummer that the same guy is standing in your way. Consider going over his head? Or, there may be some other similar programs in your area that you could choose instead.
If you can't move a mountain, go around it.
"In the burning Heart, Just about to burst
There's a quest for answers, An unquenchable thirst
In the darkest night, Rising like a spire
In the burning heart, The unmistakable fire"Survivor