i would say so, yes. not only because given the right circumstances they will let themselves die because of their 'belief' but also because they will let their children die because of the same 'belief'.
i do think that anyone who's got enough faith to die for their belief deserves an amount of respect, even if they are just plain ignorrant, at least they had the integrity to stand their ground, but a person who lets their child die, as jw's do, that's another story and those are actions that i would associate with a killer cult.