The article you cite says nothing about the /alleged/ [by Hitler as a pretext for annexation] atrocities against Sudeten Germans. The expulsion of Germans from Czechoslovakia _after_ World War II was an ugly chapter, but really -- there were no 'atrocities' being committed against that population /before/ the war. See also https://en.wikipedia.org/wiki/Sudeten_German_uprising
Sorry if it wasn't obvious, my reply was meant as an analogy. The parent comment said "The sole reason Russia invaded Ukraine was that it was flirting too much with NATO."
So I wanted to show that people have also used cheap excuses like this in the past, and that we shouldn't give Russian propaganda the benefit of the doubt.
Of course there weren't any atrocities commited against the Sudetendeutsche population, I just assumed everyone knew that, but that's due to my German-centric view of history.
I should have expected this, as sarcasm doesn't translate well over text, especially if people don't share the same cultural background.
I think all three of you are right. The official Bernie campaign did not use this as a slogan until the 2020 campaign (so 2019-2020)-- however, it was in use by supporters during the 2016 campaign (source: I was in the crowd of Bernie supporters at the 2016 Democratic National Convention when the guy standing next to me started the chant & it quickly spread. It was so interesting to see how quickly it spread from just one guy.)
I am reminded of the claim put forward by the Quaker Oats Company, in the 1980s, that Captain Horatio Magellan Crunch had developed (and was distributing, in exchange for box tops or something similar) a timepiece that could keep time 'here on Earth and in outer space.'