Who can be consumers?
Citizens, who have savings and income to replenish the savings post buying goods and services, can be consumers. Rest cannot! That implies the developed world - probably with exception of Germany and Japan, cannot be consumers. China, India, Indonesia and other countries with domestic savings will be our consumers.
Value of consumption
Currently, the exchange rate equations are aligned to repress the consumption behaviour of these populations. In the interest of global recovery these equations will have to be reversed. This will entail a lot of protectionist pressures that are detrimental to consumers. Such measures will wipe out any hint of global recovery.
Not consuming is always an option
Typically protectionist measures reduce the quality of local goods, increase prices and thereby cheat consumers out of their hard earned money. Today, the globalised consumer, is aware of product benchmarks and price parity across geographies. In current situation, consumers may simply "not consume" inferior products. They will choose to increase their savings.
How protectionism is detrimental to the world?
This means the advantages of protectionism will accrue only if it continues for prolonged period of time in near future. Till it continues - global depression will continue. It means you will see more enforcement at customs counters in airports, ports and national borders. It means increased smugling of attractive goods establishing a supply chain for drugs, weapons and other illegal trade. All detrimental in socio-economic terms.