My experience over 25 years in that industry was that you're absolutely correct. To be a plumber, you have to do an apprenticeship and there's licensure involved at the end of that and so on to be a licensed trade. But there are a lot of semi-skilled tradespeople required. In fact, in my own community two weeks ago, I met with a business owner who wanted to hire 20 new employees in the area of restoration and historic restoration work that his company does, and he cannot find those workers.
If it's not your organization who would direct people, where would new immigrants who were semi-skilled from their own backgrounds in construction and trades go?