Narcissist seems to be a label that’s often applied to confident people who are direct in what they say, and because they know that what they are saying is correct (hence the confidence), they tend to be pretty inflexible on any suggested alternatives. The other parties naturally feel unheard or steamrolled over and end up calling the person a narcissistic asshole, but in my personal experience, that’s hardly ever actually the case, or at the very least, there’s no way of knowing if they are actually a narcissist.
If my experience is common (and let’s be real here, unless you’re in the psychology field none of us are qualified to diagnose narcissism), of course this stuff won’t help because the person is right and nothing would sway them, and bitter folks, or maybe jealous folks, decided to proclaim the person has a mental illness (read, they are now flawed and you are superior) as well as insulting them calling them an asshole.
And it’s kinda weird the other way too because if they do indeed have a mental illness, then they are not trying to be abrasive and often wouldn’t even be aware that they were until after the fact, so you’re calling a mentally ill person an asshole because they are mentally ill. Try doing that to someone with any other mental issue and see how well that goes over. But it’s fine to do for this one and everyone is fine with it.
It’s shitty to go into a conversation with the best intentions and yet you always end up fucking it all up, hurting the relationship with that person when your goals were the exact opposite, being confused about why that always happens, and reflecting after the damage is done and seeing where you fucked up, tossing that onto the never ending pile of regret that follows you though life, your lonely lonely life because it’s impossible to maintain any relationship at all, not for long anyway… and then on top of it you’re called an asshole by someone who doesn’t have any idea how much it blows having narcissistic personality disorder (or what kind of childhood environment it takes for such a disorder to take root), or, they don’t understand that it’s not the same thing as someone choosing to be a dick in a conversation.