If we destroy evidence of the past, then we will lose any idea of what worked, what didn’t, and what allowed them to muddle through.
It will leave us with out any benchmarks, we will be back to trial and error, in a less technological age, that could be tolerated, in today’s world, the ramifications of such attempts in new world orders, could be world shaking.
Of course it would all be with the best of intentions. So perhaps we need not worry, lol.