To (1):

- Tariffs are not a lever, they distort risk tolerance.

- Tariffs are crude, they are like a huge hammer hitting everyone, including allies

- Tariffs cause loss of confidence and loss of credit

To (2):

- Blanket tariffs target allies; they're isolating us and we're creating blocks polarized to us and weaning themselves off our economic output.

- Tariffs only reduce dependency if there is internal capacity, of which there is none. We'll best case shift our dependency via third-party countries

- We're concentrating our risk on fewer countries where tariffs are lower

To (3):

- We're reducing our efficiency and increasing prices, job losses are coming, productivity will stagnate. We're reducing our agility and our headroom

- Historically, autarky has lead to stagnation.

The economic consensus against these tariffs is real. It's exceedingly likely the US will destroy its economy, alienate itself and isolate itself because of them :)