My way of understanding the challenge of trade: Capital can move far more quickly than people. A factory can move to a new location far more quickly than factor

My way of understanding the challenge of trade: Capital can move far more quickly than people. A factory can move to a new location far more quickly than factory workers can move to new jobs. I generally favor free trade because I think it helps people. But let's remember than in the end our priority is people, not capital. The latter exists only to serve the former.