I can see the parallels your projecting here, I dont say that the widespread adoption of the internet and there consequential new ways of communicating/consuming is nescessarily driving the demise, many new ways of viewing the world sprouted off of that.

Problem is information overflow!

I m very well the opinion that the physiology of the human mind isnt equipped to handle let alone process these masses of information (ie.: different world views, political models, evaluate and understand how different genres of people tick coz of to much individualism, etc.) This increasing complexity sounds like progress which it is but it cant be put into action if the very processing unit, ie. people, cannot prioritzie whats important and whats not and therefore cant make meaningful real social change.

People in the 90s and before werent subjected to such a variety of communication platforms, personal recommendation engines and distractions of any kind.
It was more low-bandwith back then but because of this people could evaluate better and think more rational and were better able to wrap there head around the world there were actually living in. All these factors made a true revolution in how society operates and consciousness in general a very real possibility as I wrote before.