[jhide]

I agree about with your claim, but the answer to your question is that “weeds” is a set of species that contains both invasive, ecologically harmful species, and crucial native annual and perennial forbs+grasses.

From the universalizability principle, if everyone merely let “weeds” propagate, because of the ecology of invasives that are in that set, we would be MUCH worse off for the next few millennia than we are now. Until the ecosystems healed and the “invasives” become “keystone species”. Not sure how long that would take but we won’t see it :)