The problem with unionizing and demanding better wages is that workers who do it will be replaced with cheaper alternatives, namely, overseas workers or robots.

The problem with unionizing and demanding better wages is that workers who do it will be replaced with cheaper alternatives, namely, overseas workers or robots. People on the street recognize this, at least the overseas workers part. It's a big reason why Trump was elected. Biden seems to have figured it out; he recently released a quite hawkish political ad accusing Trump of being too pro-China. Actually it's good if labor costs explode: That means ordinary people are earning more, and a robust middle class is essential for a healthy society. It might have painful consequences for quarterly P&L, but if the plebs can afford a nice middle class lifestyle, they're unlikely to storm the mansions with torches and pitchforks. If you own a company, you should read "exploding labor costs" as "pitchfork insurance."