Maria Liebermann came wrapped in fairy lights and waved a peace flag featuring a white dove. Martin Schmidt carried a Germany flag with the word RESIST scrawled across it in capital letters.
She is a self-described “eco-leftist.” He votes for the far-right Alternative for Germany. They disagree on everything from immigration to climate change, but on a recent Monday, they marched side by side against the prospect of a general COVID-19 vaccine mandate, shouting “Freedom!”