The ultimate irony here is that the musicians who have just been hired can very well end up in the same position as those who have been discarded. Hypothetically, in the not so distant future, a government can be elected which doesn't support this diversity policy, and in some way render it obsolete. Short of changing laws, it can be abandoned in practice.
Diversity isn't even the core issue here. The real problem is, as I argued earlier, economic. It is how over decades, worker's rights have been eroded, and how so many now are forced into temporary employment. Economists call this class the precariat, and its a category that cuts across a person's education, country of origin and industry they work in.
Its no wonder so many have lost faith in those who govern them. They are not so much out of touch as playing dice with the lives of future generations. Many of the rights which where fought for by unions in the past, for example, are now in the process of being dismantled.