Honestly one of my biggest problems with unions is that they protect the lazy and stupid. And most who support them don't realize it. They are looking out for themselves and not the good of people outside the union.
The Crowd is not the sum of its parts.
in the public sector-those on the "other side" of the union are generally politicians or those who owe their jobs to politicians and in areas where Unions are strong, those politicians often owe their continued tenure in office to union support. SO rather than representing the taxpayer, those bargaining with the Unions are often more interested in keeping the unions happy then obtaining the best bargain for us taxpayers.
furthermore, government employees have all the safeguard of the laws. so Unions do nothing but drive up our costs in the pubic sector