Seen a piece of this from the farmers that used it for a long time, the fields they use it on in only years time will become way less productive, as can be seen on air pictures from the fields, after decades it turns in sort of a dustbowl.
Reason is glyphosate ends up in the ground and has degenerating effects on the root systems of new crops, its the opposite of a win win.
Same as Antibiotics will render not only problems for the friendly bacteria in the gut, but harms the breeding ground in the same manner as glyphosate i think.