In my opinion Scotland should pass laws, such as exist in many other countries, protecting their native industries. Kilts, sporrans, bagpipes, and what-not should not be allowed to be imported into Scotland for resale. (This would allow individual Scots to purchase overseas kilts and bagpipes for their personal use.)
I can understand your frustration and your desire to want to help Scottish industry. But honestly, more law isn't the answer. And such a law would be highly discriminatory anyway... bordering on racist. It would be challenged as such and probably overturned.