When you press the button nothing happens. It's the same as when the grievance expires.

I think the intended purpose is to forgive, give up, delete, remove the grievance without any effect.

I would word it as "Renounce the Demand from this Grievance". Or just "Don't create a Demand from this Grievance".

https://www.reddit.com/r/HumankindTheGame/comments/pg1y0x/renounce_is_some_weird_phrasing/

https://www.games2gether.com/amplitude-studios/humankind/forums/169-game-design-and-ideas/threads/47749-renounce-in-english