Let's assume the elephant chart is (still) right. I don't understand how it denounces capitalism. Every single group besides the upper middle class and the very

Let's assume the elephant chart is (still) right. I don't understand how it denounces capitalism. Every single group besides the upper middle class and the very very bottom have gotten richer. It's impossible to have a perfect system so I would expect, in any SUSTAINABLE system, for the bottom tier to remain unchanged. As for the upper middle class, the middle and lower middle class improves so much more than them. Isn't that what everyone who denounces capitalism wants anyways? I think the chart is stupid regardless but I don't see how it says anything disproving capitalism.