He's not wrong about the US being in a state of de facto plutocracy; the evidence is pretty clear about the hegemony of the rich (and there can be no doubt whatsoever that things have only worsened since 2014):
https://scholar.princeton.edu/sites...testing_theories_of_american_politics.doc.pdf
I disagree. The wishes of ordinary citizens are often ignored because they are not politically organized. Organization - the ability to marshal resources, both financial and human - is what influences politics. Just about everywhere on the planet, in the democracies at least. Politicians aren't stupid. Politicians pay attention to people and groups that can get out the vote and/or finance campaigns. Unfortunately, most individual "voters" aren't politically active. And they don't contribute much to campaigns (compared to organizations).
There is no "plutocracy". Show me ANY American politician and I can show you how they got elected and why they got elected.
A senator from Kansas, let's say Pat Roberts, is very supportive of agriculture and the Second Amendment. He listens to organizations and lobbyists representing wheat, pork and meat producers. He also endorses the NRA, guns being common in that state. And he listens and works for the oil, gas and trucking industry lobby. He also accepts their contributions and endorsements.
A Rep from California, let's say Nancy Pelosi, representing mostly San Francisco, having a very anti-gun constituency, would never hook up with the NRA. She is also very concerned with the environment, and is sympathetic to all types of immigration, legal and illegal. Not surprising since there are many immigrant organizations active in politics in the Bay area. She welcomes contributions from these same lobbyists and their endorsements.
We could go through EVERY member of Congress this way. EACH ONE, without fail, listens to their constituency, important donors, lobbies, and organizations. Because those organizations are important to their constituency. They generally vote that constituency. If they don't there won't be re-elected. So there is no "plutocracy".
What we do have is over 500 elected officials at the national level alone, coming from diverse geographical, demographic, and economic regions. Urban and rural. All representing different constituencies. So it's not surprising that modern politics is such a fight to get anything done. Counting all elected officials at every level across the nations and you have thousands of politicians, and many thousands of different constituencies wanting something from them. I agree that money in politics is important, but money can come from many sources, not just the rich; though they are somewhat over-represented because they can donate so much, ala the Koch Bros or George Soros. They may have some influence, but they don't run things.
So tell me who is this "plutocracy"? How exactly does it operate so politicians can ignore the voters who elected them?
BTW; I read that article, and they really overstate the case. As Samuel Clemens said; there are lies, damn lies and statistics. They did some cherry picking. And they undervalued some things not easily put into statistical form.