If you have to deal with libs and that poem - let them know something that changes the context of poem completely. The writer called Hitler an "instrument sent by god" and he was only worried about the Nazis after they came for his church.
Like many Germans at the time, Niemöller believed that the Nazis and Hitler would provide strong leadership to make Germany a powerful and respected nation again. He also saw the Nazi party as a way for Germany to return to the Christian morals he thought had been abandoned, even referring to Hitler as an ‘instrument sent by god’. Niemöller’s eventual split with the Nazi party came when they started to control the German Protestant Church.
I don’t think they care about any of that. Bringing up the fact that the US removed “communists” from its version is more interesting because they didn’t want people to sympathize with communists massacred by fascists.