I've gotten pessimistic enough that at first I thought that said union strikers and thought I was reading comments from libertarians but on a second read saw it said union breakers.
Some of Superman's first appearances are trapping a mine owner and his party guests in his own mine to make him care about safety for the miners and putting an arms manufacturer boss on the front lines of the war he started.
One of the coolest things about superman; he helped destroy the third Klan. For real. Irl.
The superman radio show writers managed to get ahold of all of the Klans secret passwords and bullshit. The had superman go after Klansmen. They explained all the Klan's mysticism and made them look like complete idiots. It was a massive blow to their legitimacy. It helped strip away the mystery and secrecy that made them seem more dangerous than they really were.
Yeah, you gotta go back to Superman's earliest days for when he did cool stuff like that
60's Superman was the deep end of the Silver age, where most of his comics were him going up against softball threats like The Trickster and Mr. Mxylptlk
Wouldn't be until the 70's when stuff started to get serious again, but then it was less radical and more "Look out Superman, Metallo and the Kryptonite Man are on a rampage!"