I can only state my own personal experience. I'm diabetic and have used Splenda/Sucralose since it came out with no adverse health effects including elevated blood sugars. However, asparatame and some of the other sweeteners including Stevia do cause tinnitus for me... very loud tinnitus. It took years for me to discover what was causing it during which time it built up in my tissue so it took about a month after stopping its use for the tinnitus to go away. The only ill effect I've ever experienced with sucralose is a bathroom one but only if I way, way, overdo it. The Splenda that comes in the yellow bag and is measured like sugar spoon or cup for cup will raise my BS slightly but that's not due to sucralose but to the maltodextrin filler used to give it that cup for cup volume. There is such a small amount of maltodextrin in the individual packets that it has never raised my BS.
Edit: would I endorse the banning of any of these products? A most emphatic NO! Different folks, different strokes. I would be super, super, angry if ANYONE denied me the use of ANY sweetener leaving me only sugar/honey, etc. How does that help a diabetic? Just live your freakin life and leave mine alone!!!!