I grew up in Detroit. I make a huge distinction between industrial worker unions like the UAW and Teamsters on the one hand and government bureaucrats unions like the NEA on the other hand.
The NEA funnels compulsory union dues into political campaigns to essentially elect their own bosses. The politicians who benefit from this refuse to make any changes whatsoever in the horrible school systems no matter how bad they get.
Milwaukee teachers earn on average for $100,000 a year in salary and benefits. What do we get for it? 32% of kids in Milwaukee never graduate high school. Many of those who do "graduate" are functional illiterates who can't read, write, or perform simple arithmetic.
American cannot remain a prosperous country with our awful school system. This has to change. It will never change as long as the NEA and AFSCME own the Democrat Party.
FDR himself was against government workers unionizing. He was right.