Earlier quoted context omitted.
They have been for decades: https://aflcio.org/about/leadership/statements/reform-h-1b-a...
That article is from 2003. What about this one on the front page values? https://aflcio.org/issues/immigration > The only way to stop the race to the bottom in wages and standards is for working people of all races, religions and immigration status to stand together > Find resources to help union members know their rights and ensure they are prepared to defend themselves and the immigrant members of their families an…
“This approach will ensure that immigration does not depress wages and working conditions or encourage marginal low-wage industries that depend heavily on substandard wages, benefits and working conditions.”
And:
(1) an independent commission to assess and manage future flows, based on labor market shortages that are determined on the basis of actual need;
(2) a secure and effective worker authorization mechanism;
(3) rational operational control of the border;
(4) adjustment of status for the current undocumented population; and
(5) improvement, not expansion, of temporary worker programs, limited to temporary or seasonal, not permanent, jobs.
[0]: https://aflcio.org/resolution/labor-movements-principles-com...