I don't think that people who criticize tech workers are only saying that it would be bad if everyone was a tech worker because the city would be less diverse. Rather, they also claim that tech workers contribute less, and are generally less interesting people to be around, than others. This is what I was objecting to. But your claim that tech workers in particular, and rich people in general, make a city less interesting, is also wrong. There is a lot of diversity within the tech industry (apart from gender diversity). I work with Indians, Chinese, Russians and US citizens. (EDIT: and even the claim that middle class Whites are homogeneous is wrong, and the kind of prejudice that I was originally complaining about).

I believe that attacks on glass wearers were primarily based on objecting to people identifying with the tech industry in a very visible and gaudy way, not on privacy concerns. E.g. the title of the article was "Google Glass targeted as symbol by anti-tech crowd" and from the article, In a video Sarah Slocum shared with KRON-TV, a woman can be heard saying "You're killing the city" while approaching Slocum and apparently trying to rip the headset off of her face.

Do you agree with this, and if so, do you still think that these attacks are justified? Is simply being in the tech industry, and having the wrong attitudes, enough to warrant violence? Or is it the privacy concerns around glass that justify the violence?