Yes. That is my point. Political ideologies (quite aside from religion) can cause many good people to do bad things. So can any kind of idea that affects people's judgement and creates fear. It does not have to be a religious idea. People are easily influenced not only by religion, but also by culture, politics, media, philosophy, style, custom, commerce, race, you name it.

The point being made here seems to be that organised religions are at least as bad as all the other examples given.

The point is that if they are to have any credibility they should always be better and showing a consistent moral lead. But of course although these organised religions may be the work of the men (and women) of God - they are first and formost men (and women). Well that is the excuse when it all goes wrong - when ALL human constructs (including organised religions) do.