Pasteurization saves lives. Flash-frozen foods retain more nutrition in transit, while freezing seafood kills parasites. And even the best bread and butter are as processed as food can get.
I'm reading the "chemical additives" list and it's a mix of obviously harmful things with known safe things added in trace concentrations - there's no intellectual rigor and a lot of fearmomgering.
One common description is that it includes lots of ingredients you wouldn't find in your kitchen.
It sometimes also includes ingredients that have been turned into extremely fine powder, and other very heavy industrial processing. My way of thinking of this is: adults shouldn't eat baby food. Some fast food essentially becomes way to easy to absorb.
I think this interview had a really good description about the problems of the "ultra-processed" label.
https://www.youtube.com/watch?v=JAPgzCiSk9Y&t=377s
But at least the label is triggering some interesting discussions and awareness about bad aspects of industrial fast food.