If I recall correctly, Gibson had never even used a computer at the time of writing Neuromancer, so that's perhaps not shocking.
it’s a genre written by people who barely understand technology and consumed by even more luddite types.
it’s all uninformed fear mongering
But it is dystopian fiction, a genre that has its roots in real society problems turned up to eleven. It is not realistic, but it tends to feel real because of how psychology works, the negativity bias in particular. Same idea with 1984, pure fiction, looks nowhere near modern society, but people will go out of their way to find similarities.
The early 1980s cyberpunk genre is a speculative fiction that blends scifi and dystopia/extrapolation of current cultural phenomena to some point in the future, don't twist yourself up too much about it.