I'm not necessarily opposed to unionization in general but it's never going to save many US software industry jobs. If a unionization drive succeeds at some big tech company then the workers might do well for a few years. But inevitably a non-union startup competitor with a lower cost structure and more flexible work rules will come along and eat their lunch. Then all the union workers will get laid off anyway.

Unionization kind of worked for mines and factories because the company was tied to a physical plant that couldn't easily be moved. But software can move around the world in milliseconds.