For that, people would have to vote out a lot of existing politicians, pick fresh faces, and cycle them out regularly enough to make it difficult for a few private interests to buy them out. For some states there are incentives to keep the status quo because it helps them (Kentucky and Mitch McConnell in recent news come to mind), so those cases would be difficult to convince to dump out their representative because they provide just enough support to their states to appease residents.

Overall, there just doesn't seem to be momentum of voters to achieve this and every attempt I've seen has failed. Some of this is likely due to the orchestration/organization problem: it's a lot easier for a few thousand billionaires to converge on shared ideas than hundreds of millions of non-billionaries.

Instead, people shake their heads and go with the flow while complaining about the state of affairs and ongoing trends that hurt their interests and growth. The end result is the continued snowball of wealth inequality we see. I often wonder if we've passed a critical point of recovery within our governmental system to fix this issue but I certainly hope not.