Not technically a behavior, but - having hurt feelings over other people expressing their negative opinion about myself.

Like, say someone tells me I look bad of that I acted badly or whatever. I see three options:

1. They’re right, so it’s a good thing they told me.
2. They’re mistaken, so it doesn’t really matter (though the fact some people might think that way is still valid information)
3. They’re being mean, in which case I don’t really care about what they say.

I guess it’s some defense mechanism? I can see how that would work with people prone to narcissism, but having ones feeling hurt over things like that seems normalized in (most?) societies.

Oh, also religion. People believe in an all powerful being that personally cares about every person in the world, but is unwilling to reveal itself? Despite having zero corroborating evidence? And he’s responsible for every good thing that happens to me therefore I should see that as proof it exists and believe more, but if something bad happens that’s because I didn’t believe hard enough and should therefore believe more? And you’re sure about that and don’t see how that might be purely because this answers a psychological and social need? I understand I’m exaggerating a bit, and no offense to religious people, but… I don’t get it.

That’s not how tariffs are suppose to work.

You impose a tariff that will allow the local industry to compete with imports. Not blow them out of the water.

The $10 you gave is objectively wrong. If we know the cost of making a widget in-country, we can easily calculate the correct tariff. In your example, it’s about 5.01$ (making a local widget just a bit cheaper than an imported one, but not too high to incentivize a raising prices).

In practice, the issue is that usually local manufacturers will claim it costs them $15 to make a widget so they can get the $10 tariff. This is an issue in countries with high historic tariffs, and the local industry claims lowering tariffs will take them out of business, or (to a somewhat lesser degree) where there’s very little local industry, and entrepreneurs claim they need the price to be $15 to make it economical for them to build factories. That’s why, ideally, before imposing tariffs, the government should do an economical study of the local industry to figure out how much manufacturing actually costs them.

That said, my bet is that Trump will impose high tariffs on industries with local operations owned by him and his cronies.