No, the point isn’t that we shouldn’t complain, just it is good to keep perspective...
The real message here is that the exploitation of workers in rich countries is connected to the exploitation and suffering of workers in so-called "developing" capitalist countries. Despite the workers in the west receiving a diminishing proportion of the value we create through our labor, we have been lulled into a sense of prosperity through cheap consumer goods. The same economic model that allows you to go to Walmart and buy a $200 TV is the same economy that allows Walmart to pay its workers an abysmal wage.
Instead of being content with benefiting from literal slavery abroad, we must organize and agitate for change.