I disagree. I think what it shows is that all the “activists” screaming about the inequitable distribution of income, and how the “rich are getting richer” have it all wrong. Based on this data, income is more equitably distributed now than it was 40 years ago.
That can’t be extrapolated from this data. For example, maybe it’s a ten percent drop in income for the people in the top 1% of income earners, but maybe for the rest, it’s a twenty percent drop. Of course for many more in the past two or three years than in the past fifty years, it’s been a 100% drop in income.