I'd argue there is so much good that the tradeoff of trees killing a few humans is worth it.
The biological diversity that returns - birds, carbon soil. The air quality. Less chance that the heat will kill our senior citizens. Trees prevent floods.
From NotJustBikes channel, trees and bushes can be used to obscure road visibility, which naturally forces drivers to slow down at a curve, which makes streets safer for pedestrians (43k deaths a year in USA from cars)