The internet is not a collection of action, rather, it is a collection of information.
If we do anything to restrict information, that very action restricts innovation and understanding.
> Most people on the Internet are actually spending their time in a small number of ecosystems, like Facebook, Google, Twitter, YouTube.
The very fact that most internet users spend their time on centralized networks lends itself as a perfect example of how controlled, but uncategorized information networks are detrimental to discussion. Imagine all of Reddit were on one subreddit. The lack of categorization would lead to an unruly, and useless platform for communication. The reason Reddit is so successful is that it promotes specific conversation about any topic, without restriction. The only way that is feasible is through categorization, via subreddits.
> we need an Internet 2.0
We need an "internet 2.0" to promote the ecosystem that existed with "internet 0.1". We need decentralization (like ZeroNet, IPFS, etc.) to promote free, categorized, distribution of information.