Whether something is rare vs. common can only be verified with statistics, and you'll notice a trend that someone pushing a narrative will refuse to cite any published statistics, or hand-waves them away for specious reasons, because they're trying to manipulate you using an emotional gut-response of something that "feels true" and also hits a fragile part of your ego. Indulging in that fantasy soothes your wounded ego better than pure rationality and holding beliefs lightly would, so you have nothing to gain by questioning their narrative even in your own mind. It's the same process of emotional manipulation used by fascist provocateurs.