I definitely appreciate the sentiment expressed in this article. Personally, I have tried my best to convince myself to throw in the towel politically, but simply cannot bring myself to do that.
Why not go for broke instead? That is, advocate for a single change to the existing economy that promises the very best possible outcomes imaginable: eliminating unemployment and poverty--as well as taxes and public debt (at all levels of government)--and increasing sustainability while making the economy fully self-regulating.
If curious, a place to start is "Easy as 1-2-3-4" (here in Medium).