As you said, you don't know a thing about the man in the video. It could very well be that he spent the past 5 years working a shitty manual job, worked hard to get a CS degree and get a job at Google, and now he's pissed that people are preventing him from going to work.

I certainly know SF tech workers who have a past not too different from this.

The last paragraph of your post is incredibly condescending and doesn't add much to the conversation. In general, making assumptions about other people's intentions/backgrounds is rarely useful to a debate.

Let's all try to raise the bar here.