Hey opred!
You can try Terminal: sudo rm -rf (Put a space after the ~rf, then drag the contents of the trash into the Terminal window, hit Return enter password and hit Return again). You may need to add Terminal to Settings > Privacy and Security > Full Disk Access first.
If that doesn’t work, and per previous comments and what I’ve also witnessed with this lately, to avoid a full erase and reinstall, you could temporarily disable SIP, just long enough to empty the trash, then enable SIP again:
Disabling and Enabling System Integrity Protection | Apple Developer Documentation
Use this with caution of course. Anyhow I remember an issue whereas that Voice Trigger file was related to Siri settings for a particular user account in which disabling that setting from the other user account fixed, that was a while back though.
Otherwise, when you open the trash, highlight the folder(s) then hit View > Show Path Bar, it will show the path to the trash on the bottom of the Finder window. The contents you see in the macOS trash could be the trash of your user folder, the trash of an external drive, o even the trash of iCloud Drive, or even another syncing service, that info might help as well, as well as viewing the permissions of each file/folder in that directory. Anyhow hope it works out!