You say clearly, but it isn't clear. I would argue the existence of billionaires is a symptom and not the root of the problem. This country was founded with all people created equal under the law, but the system of kickbacks and corruption allows the wealthy to commit all manner of civil, financial, antitrust, and even criminal acts without any repercussions. How many people were charged in the financial crisis that wiped out half the wealth of Main St? 1 person? Google is larger than all of it's search competitors combined and yet Congress rolls over when Pichai says it isn't not a monopoly? Give me a break. It will only get worse, whether UBI and Universal Healthcare are implemented or not. There's a reason Big Tech CEOs are all card carrying Democrats. Modern Communism won't see the seizure of the means of production by the State. Instead it will consolidate the working class under a smaller and smaller group of larger and larger corporations that work in concert with politicians. Progressive regulation and taxation schemes support this. We even have on-campus housing for employees now so you can dedicate your whole life to a company. All that's missing is childhood education and you can be birthed into Amazon employment, get educated and trained, and live your life inside the bubble.

Anyway, I hope I'm wrong.