I've been in the same kind of group therapy as you are experiencing. IMO, it isn't helpful for anyone at all. I had to drop out because it was too much for me.

Maybe confronting the T's there may help and tell them your concerns in front of the group. It sounds to me like that is the way it is done, nothing behind closed doors and everything in the group. Tell them you don't believe that they care or that they would protect you against any kind of attack.

Let it be known how this group therapy is affecting you and that you feel very unsafe.