"Local residents confronted and drove off neo-Nazi demonstrators waving large swastika-emblazoned flags along a highway overpass on Friday between Lincoln Heights and Evendale, Ohio, home to a historically Black community that has endured a long history of racism... As they approached the neo-Nazis, the demonstrators, which Talbert said were carrying guns, called them the N-word."

https://www.cnn.com/2025/02/08/us/cincinnati-ohio-nazi-flags...

This seems to fit your criteria of "armed men in uniforms and red armbands walking the streets". Time to be worried or no?