I think the above posts can be summarised: This is not so much a question of ethics as of taste.

Personally, I think the Saltire kilt is on the questionable-to-poor portion of the taste scale. Wearing it is going to tick off James and some others. Now, there are lots of other kilts worn by people on this forum that I would never wear, but it is not up to me (or Matt or James) to determine whether they are appropriate for you.

Blazn, you are not in the UK; your traditions are not those of the UK. I don't know how many British tourists are going to see you wearing your kilt in Hawaii. If nobody who would be offended is going to see it, then who is going to care?

Me, if I wanted a new tartan blue and white kilt that evoked the Saltire, I would get the Xmarks tartan.