That said, we have travelled from a situation where formula was a life saving intervention for babies who would have died from an inability to breastfeed, to one where most babies over a few weeks old are no longer fed on their mothers milk, in one century
That's a bit of an oversimplification
Cows milk and rudimentary substitutes weren't just for women who could not physically breast feed. That simply wasn't the case. They were widely used by female factory workers. In certain areas and industries (notably pottery manufacture, textile mills) returning to work weeks after giving birth was the norm. In Lancashire and Yorkshire textile districts, this was the norm during the nineteenth and twentieth century. Also from the early twentieth century onward a number of middle class families chose to use newly marketed.
Brian Palmer was a dental surgeon who wrote about how the human face shape and structure of the hard palate has changed since the advent of bottle-feeding. Prolonged breastfeeding in our prehistoric ancestors resulted in very wide U shaped dental arches and shallow palates, less malocclusion and stronger jaw lines. Modern human palates tend to be deeper, more V shaped, our jaws are weaker and we have more tooth decay, partly because of crowding due to narrow dental arches.
To a layperson that all seems a bit speculative, are there any peer reviewed studies in respected journals that confirm Palmer's ideas? If so how do they isolate out the effects of bottle feeding from other changes in diet or evolution. In terms of dental decay, I'd speculate that massive increase in the amount of refined sugar from the seventeenth century onwards might be a factor.
This change has been largely driven by commercial pressures, the incompetence of health professionals and cultural ignorance about breastfeeding - is that something to be cherished?
In some ways yes and in other ways no. Few things are an unalloyed bad or good. I don't accept the way you characterise the decision making process of those who choose not to breastfeed as being ignorant or duped.