I don't wholly disagree with that. IMO, Queensrÿche diagnosed the fatal flaw of US leftists back in 1988 in their song "Spreading the Disease": "Fighting fire with empty words / While the banks get fat and the poor stay poor / And the rich get rich and the cops get paid / To look away as the one percent rules America".
I personally find social justice advocates hilarious. Whenever I talk to one, they seem to expect me to take individual and personal responsibility for systemic issues I had no part in creating, and expect me to remedy injustices that occurred long before my birth. They don't want justice; they want revenge for the past.
However, I'm not convinced that "small government" is the answer. Many of our economic issues are due to the issue of a few megacorporations dominating their industries, but "Small government" advocates are typically OK with letting corporations do as they please as if the Constitution didn't explicitly list the regulation of interstate commerce among the powers delegated to Congress.