You get a cut today but tomorrow you get cut. Because shipping semi finished goods from China to Mexico and then reexporting to the US isn’t sustainable for any business.
It's not sustainable in a long time.
But no business is sustainable for a long time.
Shipping semi-finished goods, or using components from other companies, etc are very practical today.
One finished product on the market today, can came from multiple processes and multiple components. Each process and each component are done by different companies, through more than just one hand.
You just need to be smart to play with it and be rich.
The one who wants to produce a finished good by himself, from raw material to finished product will never finish their product, let alone win the economic competition.
A smartphone like Xiaomi, beside China, there are USA, Japan, South Korea, Germany, France, UK, Indonesia, Brazil, India, etc inside it. Xiaomi just needs to put the best, the most efficient, the most effective, etc into their product and win the economic competition.
One country doesn't want their product to be used by other country the production will stop. Just like the case of Huawei, when USA doesn't want their component to be used in Huawei products.
China is just lucky enough to have 1.4 billion of people. They have enough resources to produce everything in their country.
A small country like Singapore trying to replicate what China do, basically it's suicidal from them.
Even a bigger country than Singapore like North Korea, isolating itself from the world, and you see what happened to it.
Mexico can try to be the next North Korea and everyone will laugh to it.
Being friendly to everyone is the key here. But politicians always look for the enemy, always look for trouble, and basically, they bring trouble to themselves.