You make a good point, but in the US I do think labor unions have become basically bad. They function more like organized crime than legal representation.
To the extent that this is true, I think the legal structures we have forced them in to, in particular changes due to the Taft-Hartley act, have led to this. For example it is illegal to strike without leadership approval, so the act forced more power in to the hands of leadership, thus making it more like organized crime.
And this is the point. Unions are not inherently bad, but the way we do them is.
And this is the point. Unions are not inherently bad, but the way we do them is.