Until there is proof or external verification of the results, it’s just another case of Chinese propaganda.
Maybe you should try Anytype. It’s Open Source, encrypted, has applications for major OSes, provides synchronization, allows export of documents to Markdown and PDF. Sometimes it’s rough on the edges, but I think it has a potential.
We are living in a funny world, where nudity must be tagged and generally hidden, but there is wide acceptance to show violence.
Do you have any sources backing your claims regarding Kagi?
Take a look at DAR: http://dar.linux.free.fr/
It has many advanced functions and is actively developed (for over a decade).
So stop complaining and start producing some “high value content that is worth reading” or just return under your rock until you get a life.