You may have a point about processing, but I think by talking about "most people" you have invalidated any future points you may be trying to make.

For example:

"single natural ingredient"

not every cow is only fed with grass, and what about that grass, has it been treated, etc...

also

Neu5Gc

Mammal meat contains it, Humans have lost the enzyme (perhaps over that time since "the dawn of man"), it causes inflammation.

Looking at chimpanzee diets, I don't think our common ancestor was regularly eating burgers. More likely insects and leaves...which do not contain Neu5Gc.

As a self-proclaimed "healthy person", I'm not regularly eating either of these, but unless I know where the meat comes from, I'm likely sticking to the non-inflammatory burger.