Jeffrey – to answer your points…
Yes – we can agree that for the great majority, heading out on trail in minimal shoes without transitioning would be a seriously bad idea. I don’t think that anyone is saying anything different.
But your characterisation of the barefoot movement as some kind of fringe fad of no relevance to normal people is way off base.
Footwear that cripples the natural functioning of our power-train is not a trivial issue. At any given moment there are 31 million US citizens suffering from lower back pain, and over 7 million are living with hip and knee replacements. Something has gone badly wrong. The causes  are complex, but the evidence is accumulating that poor footwear is a contributing factor. It destroys proprioception and throws out your balance and your gait. Over the years the damage accumulates. I know a **lot** of old mountaineers with serious hip and knee problems. So while supportive footwear papers over the problem in the short-term, you risk paying a cost in the longer term.
In our culture chronic weakness of the feet and the resulting poor posture and gait is almost universal. Are you really saying that this is something that we should ignore? And that people pioneering a viable alternative should be ridiculed?
It’s not so long ago that women were forced to wear corsets and the pioneers of the Rational Dress Movement were seen as fringe eccentrics. Nowadays anyone forcing a child into a corset would be convicted of child abuse. The reformers won the day.
In the medium term I think the same will happen with over-structured shoes. Already women in the UK have successfully sued employers who were forcing them to wear high-heels, on the grounds that it was damaging their health. So the most egregious footwear issues are already becoming mainstream.
It will take time. There are deep social conventions to overcome, and there are huge commercial interests working actively against change – companies like Nike are feeling very threatened. But it will come. In my lifetime attitudes to smoking have changed radically, despite commercial opposition. The attitude expressed in your post reminds me of the way smokers used to sneer at anti-smoking campaigners. But common-sense won out in the end…

