I wouldn't be so quick to believe those claims. The cigaret companies paid scientists to say smoking was safe and that was the settled science for decades. The sugar conglomorates paid scientists to say that it was fat in food that was making people fat. It sounds like you have an interest in these claims being true because you find vindication in it, that should make you extra cautious to not fall into the confirmation bias trap.

A very suspicious part of these artificial sweetener hit pieces is that they try to make sweeping claims about all of them at once but each chemical is completely different from the rest. There is an almost zero chance that they all create the same pathology.

Of the studies I have seen they all use thousands of times higher concentrations than is used in food. Even too much water is deadly. Concentration and dose is extremely important so anyone designing an "experiment" like that is clearly corrupt.

I don't see a paper cited here.