Bear is entitled to his opinion, as are you, Blu, as is Andrew, as is everyone on this forum... including me.
I'm not trying to convert anyone else to my opinion, nor am I trying to take anything away from kilts that are not made out of wool. I know that the majority of the people on this forum wouldn't agree with me anyway.
I'm just saying that personally I wouldn't feel comfortable wearing a "kilt" that wasn't made out of wool because I personally wouldn't feel that it was a kilt.
I'd feel a lot more comfortable telling Bear that I didn't think it was a kilt if it wasn't made out of wool than I would telling someone about how what I was wearing was a traditional Scottish garment, if it wasn't made of wool.