Not only did a lot of people care, it was the basis for all of the modern labor organizing starting in the late 19th century.
Start here: https://en.wikipedia.org/wiki/Haymarket_affair
Like your entire post is 100% incorrect and clearly ignorant of the history of organized labor or class consciousness
Edit: It’s not anyone’s fault they are ignorant to this stuff because the amount of anti-labor propaganda is unbelievably pervasive. However it does prevent effective organizing if nobody thinks that there is actual process to organize around, so it just never happens.