> They're both bad, but they're bad for different reasons: accepting that taxation is a necessary evil (I'm not sure I do, but set that aside), welfare involves paying out of tax revenues into individuals pockets. Tariffs are exactly the opposite - tariffs involve increasing tax revenue by collecting taxes on imports, and then using that tax revenue for whatever you use all the other tax revenue for.

If Mr. Widget isn't competitive at $100 vs. imports sold at $90, and you add a tariff of $10 so its "competitive", suddenly Mr. Widget's sales will increase. The other country, knowing their widgets aren't competitive (except $$ wise) then tariffs something like solar panels to protect a nascent solar panels industry.

Tariffs are a form of welfare for domestic corporations. Creating a new Mr. Widget on the assumption that tariffs will remain the same is an expensive gamble you take only if you are sure your widgets are better than Mr. Widget's widgets.

Subsidized loans (i.e. "The Bank of Boeing") are another example of welfare for domestic corporations.