I think there is another and perhaps more immediate danger from all the nice religionists out there. The ones who do the philanthropy, education and the priests who serve their flocks assiduously. The danger I see is in thinking that there is some over-arching intelligence guiding mankind's actions or future. Religious beliefs, or any faith-based thinking is inherently dangerous, such as in thinking "everything happens for a reason", meaning either a supernatural or unfathomable one, or one that is somehow guided by a "higher power". Religionists and the spiritually guided should at least admit that their entity behaves exactly as if it doesn't exist, or else is quite prepared to see harm come to the human species. We will flourish and explore our environment or we will fail on our own merits. Contenting oneself with the idea that everything from waste management to global warming need not greatly trouble us as "everything happens for a reason" is just a cop-out - an avoidance of responsibilities to ourselves and to society.
Taking responsibility for human actions is being a citizen of the world - not in the sense of corporate high flyers who choose their citizenship based on the best tax haven (PM May's 2016 speech) - but meaning people who realise that we have a responsibility for our planet and species, not just to try to make our race or nation "great" relative to some other tribe.
Children need to be taught to care about what's true; to understand why 'beliefs' should be challenged and not held sacred; and that tribalism and superstitions are plagues on humanity, however nice religionists and the superstitious may be as individuals, congregations or groups. All superstitions are inherently harmful.