Here in Italy most houses used to have contacts allowing max 3kW, but nowadays it's more common to have 4.5kW (with smart utility meters which allow 30% over current for 3 hours).
Still have to be careful if you're running a washing machine or something like that, but it's doable.
Of course old houses may have insufficiently-sized wires, and that's another can of worms.
First of all, that's not correct.
Second: emissions aren't the only form of pollution.
Third: the word "shipping", despite the name, includes air transportation;
Fourth: assuming, disingenuously of course, that the factors of the local production process are the same as the remote one, NOT shipping is always going to be more environmentally friendly.
On the one hand, fostering local production of these goods is positive for national resilience, and also has a chance to reduce shipping around the world, which is bad for the environment.
I was always fascinated by the Middle Ages... The idea that you could live in the ruins of a civilization more advanced than your own is really interesting.
I mean, that counts for Russia as well, but until recently you couldn't say anything like this without getting attacked