https://wikipedia.org/wiki/Hard_Hat_Riot.
And then a few days later, hundreds of students and teachers protested this event in NYC.
Thousands of workers in the area then attacked the protestors and rioted throughout the city in retaliation.
The police formed a barrier to prevent the workers from reaching the students, but when this was breached, they gave up and allowed the rioters to attack the students/teachers.

The mayor called out the police for not attempting to stop the violent workers, and three days later the workers began their own protests against the 'commie' mayor.

The president later appointed the main guy leading these counter protests as his labor secretary.

Just typical american shit.