It's evidence of resentment, but not of well reasoned discourse against something the tech industry is doing. Characterizations like this anthropomorphize a group into a single entity that is easier to hate and assign intentions, too. It's not constructive to any conversation that moves a discussion forward. A person who is mad at "tech bros" is likely more upset about systemic forces that they want to blame on a target. It's logically equivalent to making sweeping statements blaming immigrants for suppressed wages.
Comparing affluent ivory-tower digital landlords to vulnerable people being blamed for things outside their control is definitely one of the decisions of all time. It also seems like a lot of exercise just to feel justified in discarding a large group of opinions.
People start generalizing about groups like this when they've stopped caring about negative policy consequences which affect those groups. Politicians who blame wage stagnation on immigrants do not expect to have those immigrants who gain citizenship vote for them. Why do you think people might have stopped caring what happens to the group designated "tech bros"?
