All the vegan "milks" at my stores have gums in them, but I use them anyway in my cereal, oatmeal, and coffee. I'll have to read your articles above. If you want to avoid such things, what you mostly have to buy are whole plant foods, generally not foods packaged in a factory. Often the additives are to improve flavor or mouthfeel and to increase shelf life. No offense, but I get a little frustrated with people saying it is so hard to find foods without things like animal products, preservatives, and other additives. Walk down the produce aisle, and there they are. Now they still do contain the chemicals used in farming and genetically engineered material, unless maybe if they are organic, but that's a different story. The packaged foods contain these as well. I think some companies are wising up to the fact that some people don't want all this crap, but that's not where the money is, so there is not a lot of motivation.
Ron