I think some people are just pessimists at their core. Bitcoin is for optimistic truth seekers. If you think the world is going to hell and a hand basket and there’s no way a solution could ever solve that…well then it’ll be impossible to SEE bitcoin.

My guess is fear, doom, and complaining become addicting and/or habitual

With those around me I've noticed that it's usually as simple as "Bitcoin is crypto and crypto is a scam". It's something they just 'know' so there's no thinking past it. I don't consider myself very active in the Bitcoin scene, but using it as savings helped me with my down payment towards my house, so whenever the Bitcoin price goes up significantly that's when I see a hint of interest from others which eventually wanes.