Is there a corporate profits bubble in the US that will lead to rising populism

Is there a corporate profits bubble in the US that will lead to rising populism? Chris Brightman from Research Affiliates warns that corporate profits in the US are dangerously elevated by all reasonable measures (see chart by clicking the link below). S&P 500 Index real earnings per share are far above their long-term historical trend. Industry profit margins are at or near all-time highs. (This is) a spectacular reallocation of income to capital and away from labor . Brightman says the resulting degree of income inequality seems socially intolerable and concludes that rising populism will likely lead to changes in government policy so you can expect real earnings per share to grow much more slowly, or even decline, over the next couple of decades. (VIEW LINK)