Can't Delete a Folder from Trash

I have a folder in my trash. I have tried everything I can think of to remove it - no dice.

It is a folder - with nothing in it. css is the name of the folder.

ls -ale shows:

drwx------@ 4 myuser staff  128 20 Nov 18:27 .

 0: group:everyone deny delete

drwxr-x---+ 25 myuser staff  800 20 Sep 15:37 ..

 0: group:everyone deny delete

-rw-r--r--@ 1 myuser staff 10244 20 Nov 18:27 .DS_Store

drwxrwxrwx  4 root       wheel  128 20 Nov 08:33 css

1) Boot in safe mode - can't delete.

2) Boot in recovery mode - use terminal command to delete - permission denied.

3) Use this command: xattr -rc /Users/myuser/.Trash/css

in an attempt to remove: 0: group:everyone deny delete - no change - permission denied.

4) sudo rm -rf /Users/myuser/.Trash/css - "file is in use"... - permission denied.

5) chmod 777 - no dice - permission denied

6) Turned off System Integrity Protection - permission denied

I have tried and tried... HOW do I get rid of 0: group:everyone deny delete - I know that is preventing this from removal - but how do I remove this roadblock? I can't find how to get rid of it....

It's a folder I downloaded from OneDrive and it failed. I'd say it did... lol...

Any help much appreciated. I can't delete it.