I'm just an apple and they want me PC
He is making an analogy to computers to explain what people expect of him and what he expects of himself. That’s to say, people expect him to be something he is not. Reference to Apple and PC computers; PC could refer to being politically correct through his rapping. The apple being something born natural as humans are but, they (meaning the society/government) wanting him to be become programmed and contolled like a PC. This line is therefore a sick triple entendre.
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