As soon as Qlutch is enabled, it injects itself into the server so even if the owner decides to uninstall the plugin Qlutch will still be present on the server! Because of this Qlutch is practically impossible to remove!
To help convince the owner, you can change the name, version and author of the plugin by editing the plugin.yml This will make it look like you made it and its 100% custom made.
Many plugins have been infected with Qlutch, even paid plugins so there will be no trouble finding a plugin the owner wants and is willing to install!
Qlutch has been the #1 Backdoor ForceOp Plugin since 2016
Qlutch has active developers and Qlutch gets updated with new features regularly!
Whatever the issue, you have support from the wiki, the community and the staff