The economy might be booming, but what's trickling down sure ain't money....wages are NOT rising for most workers, largely due to a lack of bargaining power. (Anyone remember UNIONS?) Sigh....
No one has anything to sell except their time, muscle or brain power, and expertise. This applies to doctors as well as cotton mill workers!
But if not Unionized, the People will be crushed one by one. Read even a little of what workers' lives were like before Unions! And think about what would have changed without Unions (hint: nothing)