I'm not a big fan of unions. Certainly not in this case. I think where they are more effective is where the workers are largely interchangeable and do not possess abilities that are unique from other workers - or at least an environment where uniqueness is not valued by the company. Think highly regulated industries or an environment where you need a highly reliable and consistent baseline more than you need high performers or creativity. Unions can protect those workers that are largely interchangeable from the company throwing them out like garbage in favor of someone cheaper or who will put up with more crap for a paycheck. Unions are good at establishing consistency at the expense of innovation.

I think unions are the wrong answer in tech. Knowledge workers are not equal, their innovation and uniqueness is valuable and they should not be lumped together into one class where there is little to no incentive to stand out. Frankly, I'm surprised these types of people would be interested in a union in the first place because they are the likeliest beneficiaries of there not being a union and the most equipped to successfully go out on their own.