I think the point is that a person being a member of a religion which has some other members who have committed horrible acts whilst hiding behind their religion, shouldn't lead to others immediately presuming that said person agrees with those actions or at least covers up for those who did those actions.

In doing so you're playing right into the hands of the assholes - such as Zionists and Pedophile Catholic Priests - committing those actions whilst hiding behind their religion.

Now, when people do voice or demonstrate their agreement with those actions or cover up the above mentioned people committing horrible acts, then, absolutely, judge away, and quite independently of their religion even: for example you can find plenty of apologists for the Zionist Genocide and mass murder of children who aren't Jewish.

PS: Mind you, I share many other people's opinion of the tendency for evil in organized religion, but still, fair is fair and painting everybody with the same brush just because they belong to the same religion as some assholes isn't fair, what's fair is to judge those people by their words and their actions, and if those words and actions include covering up for and even supporting the assholes within their religion, THEN it's fair to consider such people as also assholes.