Tell me how, specifically, in 100 words or less. 
Tell me how, specifically, in 100 words or less.
As you should know any governmental interference in the market place to change the allocation of resources must reduce the total output. This is true in the domestic economy as well as the world economy. One of the secrets of our economic success as a nation is that the Founders made sure that economic activity was not to be characterised by internal trade barriers such as crippled the German nation at that time.
That insight is not restricted to domestic arrangements but should be extended throughout the world.
Now this is just the ECONOMIC policy of optimization and it can be overruled for political purposes such as war considerations. And the Founders had no other way of paying for the government under the Constitution than through tariffs but that does not mean that total world output was not reduced by them.