"Narcissist" to describe selfishness is from the 1800s. NPD is from the 1980s.
Surely in 2026, you've seen what narcissism had done to the world.
No, I will continue calling our narcissistic and psychopathic behavior for what it is. I will also not be showing any empathy for who, by definition, don't show any themselves.
Not all mental illnesses deserve our collective support. Comparing it to LGBT people is insane (is insane a slur, too?) and insulting. The closest comparison - and I think this is a stretch - is addiction.
It's just wild to me that you're defending narcissism in any capacity.