Leon wrote:
....
...earn more than the people doing the same job in another
country for 90% less. ...

While there's a kernel of truth in the argument that some union labor
may be overpriced, there's the problem that in the other country 10% of
the wage here is sufficient to live quite well, whereas here it wouldn't
be sufficient even if the individual economized to the extreme...

So, as in any real issue, the problems are much more complex than such
simplistic descriptions or solutions...