Economics

1. Autarky is bad. Most people haven't heard the term before because we got rid of it through decades of international economic forums. The USSR was an autarky.

2. Using this "instrument" will slow trading volumes so much it will crash all markets.

3. All economists agree tit-for-tat tariffs is a winning strategy.

Everyone. We can't even trade with our neighbors. We will end up reducing total productivity everywhere and we move to more inefficient trade scenarios/mixes.

e.g. We export fewer apples and don't see more win, points A to D.

Impacts aren't going to be distributed equally. Sure, a few domestic industries might benefit from protection. But the majority of consumers and other sectors will face much higher prices and fewer choices, which is overall more inefficient.

Another way of pondering is: why did we make the trade with others in the first place when we could have made things domestically?

Are we going to go back to making nickel batteries instead of lithium? iPhones with 7 hours of battery life instead of 18?

If it reduces economic opportunities for people in the US?