Not all s/s are ever going to be labelled folksingers e.g Randy newman, Noel coward,or Mick Jagger The ones that get labelled do so because their songs SOUND LIKE FOLKSONGS. This is particularly likely if you use a guitar. Also if you use the same old chords, song stucture, or singing styles. So if it really matters to you (why should it?)either pillage alternative musical traditions or invent your own personal genre go for it (ps reminds me of the early Dylan lyric "You sound like a hillbilly We only want folk singers here")