There are many assumptions around this you could argue about, but he’s directly addressing the original statement (which was also simple, and did not explicitly include the assumptions either).
I agree they are talking past each other - a lot of this is more related to marginal cost differences than anything else imho (basically how leveraged the value of my labor could practically be).
2. If you don't have an unfair anticompetitive moat, you'll have competitors, driving your profit towards zero as usual.
Uniformly disastrous, should very much have followed the leads of politicians like Russia's. A prime example of the polar opposite of progressive.