That was ESPECIALLY hammered in through Nausicaa, in that (spoiler) because of the poisonous top soil, it turns out the insects were slowly purifying the soil and detoxifying it and while the humans mistook them for an encroaching threat, Nausicaa actually understood them that they would stop their attacks or they'd even heal her in the ending.

I can see why the ideological parasites don't want the message of understanding nature and working to develop with it in balance being spread to a younger generation