> If these groups were doing their job, those bad guys you mentioned should be gone by now, right?
Wrong. By what magic do you think their opponents suddenly disappear or give up?
Martin Luther King said, "the arc of the moral universe is long". Progess is slow and subject to setbacks.
> They used to make the history books with their accomplishments.
Some areas of the country now want to ban the teaching of that history.
Forget racism and sexism for a moment: do you seriously think that the temporary existence of labor unions makes profit-maximizing corporations give up and give in to all of labor's demand for eternity, even after labor unions dissolved?