None of your examples replaced humans, they were/are used by humans.
For VR, many saw through the hype due to its inconveniences and minimal benefits. If VR had tapped into our nerves then things would’ve been different. No rational person expected this.
Wearables are the future, depending on if you have any medical issues or not. You misinterpreted the hype likely because you’re not seeing the medical applications.
Crypto replaced money and banks. Anybody with an idea of the function of money in a society also saw through this one.
AI is different. It aims to replace a human brain. 5 years ago if you told me a program could listen to me literally speak and then write code that not only compiles, but works, with non trivial requirements, Id have laughed at you. Yet here we are.