Then they came for the socialists, and I did not speak out because I was not a socialist;
Then they came for the trade unionists, and I did not speak out because I was not a trade unionist;
Then they came for the Jews, and I did not speak out because I was not a Jew;
Then they came for me and there was no one left to speak out for me.
― Martin Niemöller
So, who is “they”?