"Just for a moment consider what it would mean if China arbitrarily stopped exporting consumer electronics or any other category of product and what the effect

"Just for a moment consider what it would mean if China arbitrarily stopped exporting consumer electronics or any other category of product and what the effect on the West would be." The economy of the west would be devastated, but so would very likely be the economy of china itself. It sounds a bit to me like the concept of nuclear war, mutual assured destruction, so no one does it.