Your chart shows "real median personal income" increased by ~50% from 1975 to now (27k to 40k).

One of the links you're nope-ing says "From 1978 to 2018, CEO compensation grew by 1,007.5% (940.3% under the options-realized measure), far outstripping S&P stock market growth (706.7%) and the wage growth of very high earners (339.2%)."

Both of these can be true, and median personal income increasing by just 50% when the income of the wealthy increased by far, far more sure sounds a lot like "the gains from increased productivity have been reaped by executives, not workers."

Income going up does not actually mean anything without taking into consideration that people are less likely to be able to buy a house now than 50 years ago.