If I'm then one making this connection, then it should be trivial for you to finish your sentence. "First they came for..." Who are the Jews in your analogy ? Who are the communists? the trade unionists? And who is the totalitarian regime?

Suggesting that Niemöller's poem is about "one bad thing leads to another" is like suggesting that Anne Frank's diary is about "sometimes girls have really bad days." I understand you didn't mean any offense to anyone. But that's not a license to be offensive, and then duck for cover.