Not sure about the second paragraph, but about first one I kind of agree with "someone else paying the hidden cost". I believe Google, Amazon, Roku, etc. basically pay the ODMs to manufacture the TV for them, and market the devices with affordable prices to acquire more users, in order to gain more usage data from consumers.

Their point most likely is that there's a lot of nasty chemicals and toxic emissions associated with any kind of large scale manufacturing, particularly when semiconductors are involved - the Silicon Valley is by far the US' largest agglomeration of Superfund sites for a reason.

Other countries, particularly China, are known for much laxer standards and even more timid enforcement of these - of course, the generations after ours will have to live with the contamination, but for now, they can produce for far, far lower costs than Western countries with environment and labor protection laws and decent enforcement.

And another thing... advertisers. Good luck finding a non-smart TV these days, you gotta pay a significant premium for what's known as "digital signage" (assuming that you can even get models actually usable). Normal consumer TVs and monitors? They're sold at a loss or near-loss price because the real profit is from the continuous (!) stream of ads over the life time of the device, plus analytics over the content that the users consume.