You've raised thorny issues about Categorization in Philosophy, and about pigeonholing in Psychology. I've never taken a major or a minor in those topics, so I feel for you ^^ .

By wrapping a category around a concept in the mind, we are able to chunk it. We can deal with about 7 +/- 2 chunks in the mind at a time, so it is valuable to be be able to chunk things and put them in a bin. That aids associative memory (information retrieval).

Maybe the folks in the Lounge would be more congenial?

It is why some people feel better when they finally get a diagnosis for a mysterious ailment.

I t also makes something visible, it creates a kind of touchstone for conversing about it. with others, and beginning to each solutions.

It enables us to address whatever it is in the public sphere.

Rumplestiltskin knew about this.