I believe the answer is:
- inflation
When a currency is devalued, people would be able to buy less amount of product with the usual price.
- trading wars
When a country create quotas and tariffs for goods from other countries, those other countries tend to retaliate and do the same toward the goods from our country.
- Expensive price for consumers
To enter Brazil, importers need to pay high tariffs. Because of this, they need to rise the price of their product in order to maintain their profit margin. This would be felt by Brazilian consumers in the market.