Guessed the topic????

Here is a poem about a recent happening in Mumbai. Just guess what I mean by that-

"First they came for the communists, and I did not speak out - because I was not a communist; 
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 Niemцller