collapse of the old society

Where I live Mimosa kills everthing where it grows, so does Eucalyptus. But watching (and unsuccessfully fighting it) during two decades I find that it ultimately can't outgrow the native species, it finds a more humble place in the landscape with time. Yes we shouldn't stupidly introduce new stuff left and right, but the idea that invasives could be removed entirely feels entirely impossible (how? and where to draw the line?), and also frighteningly fascist, to me. Managing a landscape by building diverse ecosystems where the 'invasives' have place and function seems to be a more fruitful (!) thing to do imo.