Anyway, Adam Smith was from the ruling, landed classes in Britain. He was a natural enemy of the capitalist classes, who were, at the time, fighting to overthrow them and bring classical liberalism and internationalism to the world. It isn't at all surprising that he had bad things to say about capitalists. What is truly interesting about Smith's work is all the good things he had to say about what capitalism was bringing to the world. He was simply describing what he saw at the time, which makes it extremely different to later philosophers who tried to both describe what they saw, and hypothesize some amazing future like seers.
As for this guys claim that today's globalization is like the mercantilism of antiquity, it really is just not a good take. They are almost diametrically opposite. The entire point of free markets and free trade is to put a stop to all the corruption that he mentions in this article. yes some still seeps through but it is a million times worse under mercantilism, as he does rightly recount. Just because some bad things still exist under today's free market economy, doesn't mean mercantilism and free markets are the same thing.