TL;DR: "I'm disappointed that tech leaders prioritize their own interests and success over my political preferences. I'm now homeless because I mistook the map for the territory. Anyway, Portugal seems nice."
The author does not seem disappointed because tech leaders have a different political preference.
The author seems to be disappointed because what he thought was the original ethos of Silicon Valley - competition, innovation, risk, and rebelling against the status-quo - is now replaced by oligopolies, risk-aversion and bended-knees.
The author seems to be disappointed because what he thought was the original ethos of Silicon Valley - competition, innovation, risk, and rebelling against the status-quo - is now replaced by oligopolies, risk-aversion and bended-knees.