I'm all for personal website and these sentiments which regularly come up here around self hosting. This one seems a bit disproportionately confused and angry though.
If we're going to have any large aggregation or social media businesses where individuals trade data ownership for convenience, being able to put your opening hours and rates on the the internet without having to figure out how to have a website seems like the optimal use case.
I think we should aim for a sensible mid ground where social media provides just the things it provided before around 2011, like updates and communication with people you know and want to interact with already.
An "all personal websites" web that OP is calling for is just pushing the exclusion they feel onto the people they're complaining about.
We should have websites. We should also use the appropriate tool for the appropriate job, and running your own website isn't the best tool if you just want to get your business rates and opening hours on the web.