It's not even the person that did the bad thing that is being held responsible according to this logic. It is the doctrine. The doctrine made him do it. Nobody is directly responsible in this case -- but ALL Christians are indirectly responsible and ought to be treated
as though they are directly responsible.
I see that as the same lame, attempt to
transfer responsibilty from the action-taker to a third party as using "the devil made him do it" as an excuse or explanation for negative behavior. In this case, the dcotrine made him do it and you as a follower of the (doctrine/devil) are being demonized for it.
So what's the problem?