How can I empty the always-filled Trash on my Mac?

I recently reorganised my iCloud Drive files and folders on an unstable internet connection.

After decluttering many files and folders, I found out there are two folders that keep reappearing in my Trash folder. They both have the iCloud download icon next to them. No matter how many times I delete them, they come back.

So far I have:

• Sign in to iCloud web, empty the Trash from iCloud Drive.
• Used a command in Terminal to empty the trash.
• Sign out of and in my Apple Account on Mac.
• Changed my internet DNS to resolve potential issues.

And none of them have worked.

I'm frustrated.