There are a lot of things that have to happen for us to go from the world we are in today, to a world where individuals need to avoid being critical of the state online or face reprisal.
Advice like this seems helpful, but regular citizens being punished (by the government) for what they say online is very unlikely. Instance owners and influencers sure, but not your average netizen.
The government is a tool of the billionaire class. Weakening it weakens their power. Also any buying nothing movement would harm the billionaires much more than the government.
You know that "defeating" the billionaires would screw over everyone on earth more than toppling the government of Florida or Texas? They have so much power removing their wealth, especially suddenly would destroy the global economy..
Any solution to the larger problem of oligarchy is going to hurt everyday americans. Buying nothing would at least give them extra money in their pocket to adapt to the changes.