Double checking my understanding of のことで

Question

Would just like to check my understanding of お前の持ってる徽章のことで交渉がしたい

Am I correct that the のこと nominalizes "お前の持ってる徽章" and で is simply means 'with' for 交渉がしたい

"With the talisman you have - I want to negotiate"

Nominalization is not needed, since お前の持ってる徽章 is already a noun. I see this のこと after a noun quite often and I'm pretty sure they just use it when they want to say "about" as in "discuss about, negotiate about, think about" etc. — andrewb, Aug 31 '20 at 06:54
The で keeps irking me for some reason.
Is it grammatical to say お前の持ってる徽章のことを交渉したい — Ryan, Aug 31 '20 at 07:03
http://www.edewakaru.com/archives/15531056.html "grammar not on JLPT" lol — broccoli forest, Aug 31 '20 at 16:11

score 2 · Accepted Answer · edited May 01 '22 at 18:11

This こと is not a nominalizer. Nominalization refers to turning a verb/adjective into a noun. It looks like this:

お前の持ってる徽章 is already a noun phrase, and it doesn't have to be nominalized. This ～のこと means "things about..." or "matter regarding...". Please see What is the こと in sentences such as あなたのことが好きだ?

お前の持ってる徽章のことで交渉がしたい。
I want to negotiate with you about/regarding the insignia you have.

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