Exploitation of labour is wrong. 
First let us define 'exploitation of labor'.  i define it as treating your employees unfairly so that you can gain an unfair advantage over them.  My example here is UBER, which takes 50% of gross and leaves the drivers to pay for their own gas from what is left.
Indeed, Uber and other companies are certainly taking advantage and exploiting their employees. I despise it. We work hard enough for our money. 
ever since the labor organizing and sweatshops of the 1910's and 20's, there has been a fundamental power assemetry between owners and management, on the one hane, and loabor or employees on the other.
When I think of exploitation of labor, I also think of waitresses. As a waitress, I made $2.50 an hour plus tips. The problem with that is, the tips are pooled and split between the waitresses. Even if I did really good, it was split between us evenly. 
Right you are.  The root cause of exploitation of labor is THE CONSUMER.  They demand the lowest possible price and the maximum benefit, resulting in a small pie to be split between owners and employees.
Can you suggest a solution to this problem?
Karl Marx wrote extensively about this. he is considered the most influential theorist of exploitation.  Obama was a Marxist.
That is interesting. I will look Karl Marx up and read on it. I am extremely interested. Especially since Obama seemed to like him.
of exploitation, did not share the same traditional account of exploitation. Marx's theory explicitly rejects the moral framing characteristic of the notion of exploitation and restricts the concept to the field of labour relations. In analyzing exploitation, many political economists are often stuck between the explanation of the exploitation of labour given by Marx and Adam Smith.
Marxist theory.
Marx's exploitation theory is one of the major elements analyzed in Marxian economics and some social theorists consider it to be a cornerstone in Marxist thought. Marx credited the Scottish
Exploitation of labour
Exploitation of labour (or labor) is the act of treating one's workers unfairly for one's own benefit. It is a social relationship based on an asymmetry in a power relationship between workers and their employers. When speaking about exploitation, there is a direct affiliation with consumption in social theory and traditionally this would label exploitation as unfairly taking advantage of another person because of his or her inferior position, giving the exploiter the power.
Karl Marx, who is considered the most classical and influential theorist