BTW at least saccharine and ace-k are already known to be carcinogenic AFAIKIt would appear that the US FDA and European FSA disagree with you on that subject.
Concerning saccharin:
In a December 14, 2010 release, the EPA stated that saccharin is no longer considered a potential hazard to human health
Wikipedia link: https://en.wikipedia.org/wiki/Saccharin
Concerning Acesulfame potassium
Critics say acesulfame potassium has not been studied adequately and may be carcinogenic, although these claims have been dismissed by the European Food Safety Authority and FDA
Wikipedia link: https://en.wikipedia.org/wiki/Acesulfame_potassium
Plus a report that lactobacillus concentration may actually be enhanced by artificial sweeteners:
In vitro analyses of Lactobacillus 4228 growth characteristics showed that presence of NHDC significantly reduces the lag phase of growth and enhances expression of specific sugar transporters, independently of NHDC metabolism. This study suggests that sensing of NHDC by a bacterial plasma membrane receptor underlies sweetener-induced growth of a health promoting gut bacterium.
Bacterial sensing underlies artificial sweetener-induced growth of gut Lactobacillus
https://www.researchgate.net/publication/278045609_Bacterial...
Plus one of the last hold-outs to declassification of saccharin as carcinogenic was Health Canada which based the original prohibition on University of Nebraska studies but later concluded:
Such sodium salts, the council said, “produce tumours only when administered at high doses and only in rats,” thus “the mechanism by which the rats develop cancer is not present in humans.”
https://www.agcanada.com/daily/saccharin-cleared-for-use-in-...
Appears the jury is still out.