> If you’re a consumer, I’m not sure why you’re not singing praises of this arrangement.
You misunderstand my point a little - As a consumer, I want access to that pricing! Why does it cost me tens of dollars to post something across my own country? But it costs someone in China almost nothing to post much further, including the part in this country?
And the answer is that treaties mean that we're all paying for it in other ways. In fact my expensive parcel may be directly subsidising the cheap parcels from overseas. I'm not a fan of this idea.
> If someone in China can sell me exactly the same stuff for 1/4 the price you’re charging, shipping included, then why do you even exist?
My partner briefly tried to sell handmade items within Australia. The postage cost more or less killed the idea as it added 50% or more to the price of a small-ish item. Yes, a mass-produced item from China would likely cost about 10% as much and be shippable for nearly free, but the audience is different. AFAICT it's largely other people who make stuff, and some who just value handmade and want to support local. They don't want the thing from China and are a little less price sensitive, but still within limits.
For items that are directly equivalent, I would prefer to buy from an Australian company, not least because of the consumer protections. Market distortions that favour overseas sales over domestic seem like a bad plan all round.