Buy European

That's popsci. If you want to argue specific ingredients please link his sources he used for his list, otherwise:

Don’t get me wrong I’m highly critical of processed foods

Also the definition that nutritional scientists use for "ultra-processed food" is... culinarily problematic. Quoth:

Ultra-processed foods are operationally distinguishable from processed foods by the presence of food substances of no culinary use (varieties of sugars such as fructose, high-fructose corn syrup, 'fruit juice concentrates', invert sugar, maltodextrin, dextrose and lactose; modified starches; modified oils such as hydrogenated or interesterified oils; and protein sources such as hydrolysed proteins, soya protein isolate, gluten, casein, whey protein and 'mechanically separated meat') or of additives with cosmetic functions (flavours, flavour enhancers, colours, emulsifiers, emulsifying salts, sweeteners, thickeners and anti-foaming, bulking, carbonating, foaming, gelling and glazing agents) in their list of ingredients.

Fruit concentrates and inverted sugar have centuries-old culinary tradition, dextrose (i.e. glucose) and fructose are naturally occurring, as said the ratio and amount is the issue not their presence, casein and whey protein are in, well, whey, milk, butter, not a new ingredient, emulsifiers there's no mayo without it, mayo uses lecithin as emulsifier, that's why there's yolk in there, thickener is traditionally starches, particularly roux, the OG gelling agent is gelatin in Europe, Asia also already had stuff like arrowroot. Colours? Red beet, saffron, sepia (cuttlefish ink), it's not like cooks didn't care about colour before industrialisation. Don't ask whether there's colouring in there, ask what kind of stuff the thing is coloured with. I won't get started on "flavour enhancers" MF why do you think people put fish sauce, soy sauce, mushrooms, or tomatoes in things. Because MSG, shit's in there.

All in all, and they say that themselves ("operationally distinguishable" aka "we're casting a net while wearing a blindfold") this is a way to classify things as "ultra-processed", but in itself says nothing about how healthy or unhealthy any of the ingredients are, just that they're used by Big Munch, and on top of that they're getting the "no culinary use" thing wrong.