The only way to stop all this nonsense is I'm afraid, to start searching into the past of the 'woke' accusers & 'outing' THEM. Every single one of us will have somewhere in our family history something which can be construed as racist, somehow connected to slavery, non-PC or in some way reprehensible by today's standards.
The horrible Head librarian at the BL went so far as to want the Poet Ted Hughes's books removed from the shelves because she thought a forebear of his 300 years ago MAY have had some connection to slavery, 'Let's have a look at YOUR ancestry sweetheart' , sez I.