Maybe consider formulating your requested change in writing and present it to them one on on, either in person or via email and ask for feedback. Keep bothering

Maybe consider formulating your requested change in writing and present it to them one on on, either in person or via email and ask for feedback. Keep bothering them until they either respond thoughtfully or make it clear they won't. Also consider communicating that this is something that is personally a sticking point, that is making you consider leaving the org, but that you don't want to leave.