That would be a fascinating analysis - to take the people with the top ten names of the 70s and 80s and to see what they have named their own children. And analysis the other way. To see if the people with “unique names” went the same way.
When my grandmother was born the doctor said she wouldn’t make the night so they just gave her a placeholder name (along the lines of being called “Diamond”). She had two daughters; one was given a top 10 name (I assume top 10, not far off if it wasn’t) and one was given a unique name. I wish she was still alive to ask her why, but I suspect it was just because she liked the names. My grandmother didn’t mind having a unique name but its one of those words that everyone would know how to spell/pronounce and she was quite proud of the fact she proved the doctor wrong so liked explaining her name. My mother, with the unique name, absolutely hates it. And her three children were all given common names.
I guess our names are a way to identify us. But I don’t mind being “Emily Smith” as opposed to just “Emily”. It’s not like my entire identity is being Emily. At university, there were a lot of Daves, and we ended up with “Tanned Dave”, “Psychology Dave”, “Skiier Dave”. “Cockney Dave”.
I don’t think having a unique name is a problem per se, but it appears to be one of the top priorities. And then I see people getting angry if there is another one and proud when there are only a few. I noticed the list had a lot of “Margaux”s for example, instead of sticking to “Margot”.
I often read the baby names forum and want to ask “well why does the name need to be unique?” but never have as it’s not a helpful comment. Plus it’s not a judgement of one particular name, just a curiosity about the whole trend.