@BrianStager You will have to overlay the below path and add a rendercondition to hide create holder option to users of a specific group
/libs/dam/gui/content/assets/jcr:content/actions/secondary/create/items/createfolder
/libs/wcm/core/content/sites/jcr:content/actions/secondary/create/items/createfolder
You can refer to the below link on how to create the render condition
https://levelup.gitconnected.com/aem-creating-custom-granite-render-conditions-28a21958f420
Also remove read access to the below path
/libs/wcm/core/content/coral/common/createfolderdialog
Similar approach can be used for other operations too.