I was not of course suggesting that singers were not musicians. Just making a distinction. I should have stuck to the term instrumentalists.
I also hope that all musicians would appreciate and understand each others forms of music.
However, the first few posts of this thread tend to confirm the impression I have that singers are less tolerant than instrumentalists.
Singing without instruments is a perfectly valid and fine form of musical expression. Does the intolerance to other forms, shown by some of those who prefer this form of music, suggest there may be a question over their musicianship?