Sentence:  The answer, I suggest, is that phonemism is rooted in <WSD>alphabetism</WSD>. Indeed, many linguists have suggested that there really is a /g/ phoneme at the end of 'fang' and other [ŋ]-final words in English, except that they are not pronounced! 
Meaning of the word marked with <WSD> tags:  Excessive reliance upon the alphabet or alphabetic structures.