Both graphs are necessary to understand the whole problem. The suggested one and this one. A third one with income distribution over the world would aso be good.

The thing that gives a wrong picture is not necessarily the graph itself. It's just context that's missing.

There is one misleading part of the graph though. For Years before at least 1920 there is no clear data on carbon footprint. So this data is speculative and falsely accentuates the change in caron footprint that's happening now.

What do you mean by adjust it? How much each group contributes to CO2 emissions if they were represented equally in the population? I think this graph is interesting! But imo. you are right, an adjustment like this would be cool to see as a comparison.