I'm not sure thats the right comparison. Eletricians tend to work within a city, at a given job site. So they are fairly autonomous. A walmart union would not

I'm not sure thats the right comparison. Eletricians tend to work within a city, at a given job site. So they are fairly autonomous. A walmart union would not. For example, look at United Auto Workers. How much control does the average UAW union member have over his life? Compare to the average software engineer. How much control does he have over his working conditions and pay?