Was it such a sin that our electronics were made in the East? Was the west truly deprived and the east really abused? It’s nearly the end of of our lifetime (+-100 years is a margin of error), so the fact for our lifetimes is that our electronics got made there.
What is the final judgement about this?
The same reason Europeans are moving away from US tech right now. You can't bury your head in the sand and pretend geopolitics is imaginary.
"Sin" is the wrong framing, but outsourcing most of your capability to actually make stuff can definitely cause problems for a country.
For example, on a military level, the US is concerned about how rapidly China is catching up in naval capacity, China is building new warships far faster than the US can. And it's hard not to notice that China's overall shipbuilding capacity is more than 200x higher than America's.
The US has a lot of pride over having been "the arsenal of democracy" in WW2, and it's well known that a huge part of why the US was effective in that war was sheer mass: the US simply made much more war 'stuff' than any other combatant. But if the US was to get in a shooting war with China today, it would likely be China that would enjoy an advantage in production scale, with the US trying to make do with fewer vehicles and munitions.