Well some may think that tariffs are a cardinal sin but only by those that push the Central Bank agenda.
Before the Federal Reserve infiltrated the United States in 1913 the United States payed for almost everything that taxes do today.
Imagine if you will reducing the size of the government (smaller budget) and reducing or eliminating taxes strategically in phases. This will ween the people and a country off of the Federal Reserve/Central Bank and looked at as a template for the rest of the world.
Now for the BRICS. The BRICS was formulated by Chief Economist at Goldman Sachs, Jim O'Neill, in a 2001 study entitled "Building Better Global Economic BRICs". How trustworthy does that sound?
I'm old enough to remember when Russia's pipeline was bombed and Europe wanted to buy oil from Russia. Russia gave them the finger and said they will only accept gold, Bitcoin, or Ruble for payment.
Since we obviously still live in a parallel economy it's probably wise to play the fence and be good at it. It's also a national interest to countries to have their own currencies along with other assets like gold, silver, and a Bitcoin reserve.
Sorry for any misspellings, I'm just a dumbass.