Tariffs could help domestic industry, but in any case they will rise the prices.

If a customer have to pay X% more for some imported thing, then there is no any reason for local manufacturer to set the price for the similar thing made locally X% lower. This X% will just go to the pocket of the owner.

We have customs taxes for many imported things here for a long time, they always make things more expensive for people. All things, imported and manufactured locally. Of course, this sometimes could help local industry, but that's not for sure.

Shortly, tariffs is kind of a way to indirectly subsidize local industry at the expense of local population. As you might know, subsidizing does not work always and even could make things worse.

Tariffs could help domestic industry, but in any case they will rise the prices.

If a customer have to pay X% more for some imported thing, then there is no any reason for local manufacturer to set the price for the similar thing made locally X% lower. This X% will just go to the pocket of the owner.

We have customs taxes for many imported things here for a long time, they always make things more expensive for people. All things, imported and manufactured locally. Of course, this sometimes could help local industry, but that's not for sure.

Shortly, tariffs is kind of a way to indirectly subsidizer local industry at the expense of local population. As you might know, subsidising does not work always and even could make things worse.