Earlier quoted context omitted.
> So he probably lives in a big city, eats out very often, takes public transportation, and basically relies on external services for things he does not have. Which is a kind of lifestyle that has a lot of externalities and does not really have a minimalist impact on society as a whole, Not sure how living in a big city and taking public transit has more negative externalities than the alternatives, care to expand?
He didn't say they are negative, he said they are externalities. I've come to the same conclusion that minimalism is only supportable by other people not being minimalists. That's not necessarily a judgment on whether it is good or bad, but a statement of fact.
I also feel it was implied that this impact was negative - or else it wouldn't be an argument against the post - but that's besides the point.