It was this statement that was so problematic for me. He implies that the true nature of the Dhamma has something to do with the religious and cultural developments of ‘Budhdism’ and it’s effects on the world.
The Buddha Dhamma clearly illustrates that these results are caused by the nature of humankind and greed, hatred and delusion, that causes humans to make certain choices - which includes the construction of the ‘religion’ Buddhism and the resultant cultural and socio-economic impacts…
It is his jump from what Dhamma is to
That, IMO, makes his premise unsustainable, even within the abstract. He doesn’t seem to demonstrate an understanding of the Dhamma, at its most basic level of 5 hindrances.
Bhante @sujato does a great job of deconstructing the nature of choices into their component aspects, in his Buddhist Futures talks here
https://discourse.suttacentral.net/t/bhante-sujato-buddhist-futures-talks/15795
While they are not 100% geared towards your topic, they do provide some interesting context and also sutta references as back up 
Now that is using the Buddha Dhamma to look at the current state of affairs 
with heaps of metta 