The US is still full of them, yes. I included the alt definition because I'm a little confused by the premise of the meme. It reads "born too late to punch nazis, born too early to punch terminators, born just in time to punch nazis".
Kinda. It’s a reference to the SA. It’s become a shorthand for fascist paramilitaries that haven’t seized power, so like one could call the proud boys brownshirts.
But it’s regional because they only wore brown in Germany. Italy had the blackshirts and Americans wore silver.