What's to concede? Either the water is polluted or it isn't. (It is.) Either the food is tampered with or it isn't. (It is.) Either the food has pesticides on it or it doesn't. (It does.)
Similarly, this study (which was funded by Greenpeace, by the way) was not based upon any sort of falsifiable, impartial clinical analysis. Instead, the self proclaimed French corn experts merely claimed that glyphosate was found in some rats. How the glyphosate got in the rats (and why a rat's diet is thought to be comparable to a human's in any event) is left to the imagination. But, you've got a fanciful imagination.