Going about your job/life despite a looming threat is a different level of resignation than telling others not to worry and giving them a false sense of hope not because you truly understand the danger to be fake but because "what else am I to tell them? the truth is too horrible to bear" isn't actually doing anyone a kindness: it is going out of your way to make the jobs of those who would tell you the raw truth harder.
If you go to the doctor and they understand there there is a chance you are going to die but, when you come to them for advice on your pain, they look you straight in the eye and insist that you will be fine if you just eat some more fiber, they rob you and your family of a not only a chance to prepare and grieve but the motivation to fight the inevitable.
To your analogy, if you think we might be on the brink of a war that might massively effect your life and so you go to the wise guru who assures you you will be fine if you just duck and cover in the basement, they are, frankly, part of the problem, as they are making the war sound "not that bad", when if you understood the threat of thermonuclear war you might be protesting in the streets.
