I tend to agree with you. In saying that, I wouldn't mind an extra 100 years. If we could invent a mechanism to avoid concentrated power/resources [1], I think humanity would be better off; for if we can mostly agree that "with age comes wisdom", we would surely be collectively wiser.

[1] - The mechanism to avoid concentrated power is a drop in for many other things. For example, I believe if societal structures could effectively optimise for ethical behaviour, individuals would be less likely to crave for power lust and greed.