> Dualisation, making a labour market with insiders and outsiders certainly helps those on the inside. But that comes at the expense of those on the outside. If this is the goal how would punishment of those hiring self taught developers and those who didn’t pay union dues be coordinated?
Those on the outside should come inside. There's no reason why self-taught developers can't be on the inside, as long as they learn and adhere to professional standards (as agreed upon by the membership.) If they refuse, I have as much sympathy for them as I do self-taught doctors. There's nothing that needs to be coordinated; if a business hires non-union labor, union members cannot work for them and remain union members.
As for the rest, if you are good enough that employers would be happy to ignore the union because you're worth 100x any of them, you shouldn't have a problem, and the people you work for shouldn't have a problem. The union doesn't affect either of you, because they're paying you a boatload, and you're giving them all the work they need. [edit: and tbh, there's also nothing to lose by being in the union except what is probably a trivial amount of dues in return for group rate insurance, refresher training classes, and discount software licenses.]
> Knowledge workers can make the entire product and capture far more of the productivity thus generated.
And should. Co-ops and the self-employed don't need a union, they are a union.