Words matter. If your elected representatives use language that demonise others, and refuse to apologise when they’re challenged on it, then I’d suggest not electing them to represent you again.
Auschwitz "did not fall from the sky".
Auschwitz took time. The industrial murder was at the end of a long process which began with coining the idea. Words & propaganda reinforced stereotypes & prejudice. Legal exclusion and dehumanization was followed by escalating violence.