The answer is racial ....
I need to have 20 characters to post the answer so I’m just gonna say hope this work YEET
China was itself an established empire and could not be conquered the same way as they did Africa and India.
What you are saying is basically equal to saying why not land in England (during that period) and turn everyone into slaves.
Since that is impossible, establishing spheres of influence allows major powers to break China from the inside.
The major powers of europe, Japan, and America ganging up on china during those days is the main reason behind China's firm foreign policy today.
John Lea and Jock Young, leaders of the leftist realism movement, contend that the poor are doubly abused, first by the capitalist system and then by members of their own class.
Left realism in criminology appear to form critical criminology, it argues that the crime is inappropriate affects the working class people, but that solution that only increases suppression to make it worst in the problem crime.
