AFAIK there hasn't really been a clear link between roundup and certain rare blood cancers. Just a correlation between them in certain geographical areas. Some studies have found the correlation and others haven't. I believe even the doctors who treat these diseases know this to be true.
Though, it would be really easy to write a book citing only the evidence in support of the link. At this point I'm not sure what to believe, but I have no need for roundup so I avoid its use.
As a counterpoint, here's a relevant part of an interview with the lawyer who won 2 billion dollars in damages from Monsanto addressing skeptics of the trial: https://www.youtube.com/watch?v=Gw5H36B1tJE&t=2842s
No, I watched it, I'm a little surprised that one imprecise statement is compelling to you regarding a matter of scientific facts. I mean rather than taking it second hand from a lawyer that an unknown portion or a jury were 'scientists', you could actually take it from scientists and advisory and investigatory bodies comprised of scientists the cite specific sources.
"Glyphosate is one of the least toxic herbicides used. It inhibits the enzyme 5-enolpyruvylshikimic acid-3-phosphate synthase which interferes with the shikimic pathway in plants, resulting in the accumulation of shikimic acid in plant tissues and ultimately plant death. The enzyme and pathway do not exist in animals, which is why toxicity is so low."
"The shikimate pathway (shikimic acid pathway) is a seven-step metabolic pathway used by bacteria, archaea, fungi, algae, some protozoans, and plants for the biosynthesis of folates and aromatic amino acids ..."
Even if there is no biaccumulation of glyphosphate in animals (maybe), can we be sure that there are no negative effects on digestive systems of humans (and wild animals)? What about water and soil biomes?