By 2015, Samsung already moved more than half of smartphone manufacturing from China to Vietnam. All others are late to the party.
Vietnam doesn't work so well with the Chinese because of their history and because the US has already been giving Vietnam a bunch of free boats [3] [4] and money.
[1] https://www.theguardian.com/cities/2018/jul/31/no-cambodia-l...
[2] https://www.washingtonpost.com/world/asia_pacific/this-cambo...
[3] https://thedefensepost.com/2018/03/29/us-gives-vietnam-6-pat...
[4] https://www.reuters.com/article/us-vietnam-usa/u-s-delivers-...
But now you go even far and mention the wild old west, yeas, those are the developments of the free market.