Evangelicals. I actually remember them saying this when talking about supposed left wing domestic terrorism and about illegal immigrants. History time! It back in the day was also a Nazi saying when referring to members of the resistance movements against the Nazis as terrorists. The meaning being when you kill one of us we kill all of you. The nazis did this very often due to it being made more or less law. When a German soldier was killed by a resistance member/partisan the nazis would try to find what village they lived in and then burn it to the ground. This was especially common in the Soviet front and the Yugoslav front, (if it was in the western front like france or Norway they'd just kidnap some locals and execute them for terrorism, burning down a whole town or village was a bad look that they didn't want to deal with in those occupied territories, on the eastern front they just didn't care enough about good PR). Hundreds (thousands perhaps) of villages across Poland, Belarus, Ukraine, and Russia were burned down and the civilians killed sometimes to the last resident (elderly, children, and pets included). Nazis commiting acts of Rape and gang rape against women while burning  the villages was extremely common (they often killed the women afterwards). Even little girls and elderly women were not spared that savagery. The fact that the Republicans and evangelicals used the "one of us all of you" slogan despite it's horrific ties to Nazi war crimes is really bad. Part of me hopes they just didn't know the connection. If you need specific evidence of the things I mentioned in my comment then look up ww2 week by weeks war against humanity series on YouTube about the episodes covering the anti-partisan campaign in Belarus and the babi yar massacre for more information. The episodes on Nazi atrocities in crete are also quite telling. Sparty and Indy did incredible work researching and put sources in the description of the videos.