A blockchain is a lot more than just a data structure, it's an entire governance system that needs a community around it and active maintenance, continually running nodes, etc.
It is more like a discord server than it is like a data structure.
I think it's important to separate Bitcoin itself from the general concept of blockchains as a new type of data structure. Personally I think the real benefits to society will be had by applying Bitcoin's concepts to brand new unrelated things, and hopefully Bitcoin mindshare can help spark that creativity in people. To me, someone saying "The Blockchain" is like someone saying "The Linked-List". They're not thinking about it generically yet.