But since you have both, you will have both forms of surveillance. They don't spy on you less when income tax is 10% less. As far as privacy is concerned, it's better to have full income tax and no tariffs than 10% less income tax with the rest in tariffs. And as opposed to income tax, the surveillance and imposition from tariffs scale with the amount. The more tariffs you have from more locations and product categories, the more nosy border patrol and customs will be, questioning your personal belongings and anything you bring with you.

This is not to mention that they are economically terrible for everything they propose to fix. Even if you believe the purported goals they are taxing everyone to save a few thousand jobs in some swing states. It's a terrible deal all round.