Members of the Storm Troopers ("die Sturmabteilung," or the "Storm Department," as I like to think of them) stood around outside of Jewish-owned stores with Gothic-lettered placards reading "Germans! Defend yourselves! Do not buy from Jews!"
The boycott itself was a total disaster — most Germans ignored it and just went on with their lives — but it was the beginning of the official persecution of the Jews and totalitarianism in Nazi Germany.
Last week, here in "New Normal" Germany, the government (which, it goes without saying, bears no resemblance to the Nazi regime, or any other totalitarian regime) implemented a social-segregation system that bans anyone who refuses to publicly conform to the official "New Normal" ideology from participating in German society. From now on, only those who have an official "vaccination pass" or proof of a negative PCR test are allowed to sit down and eat at restaurants, shop at a "non-essential" stores, or go to bars, or the cinema, or wherever.
Here's a notice from the website of Prater, a popular beer garden in Berlin: