No, I do not think you are a complete nutter, either for contemplating not buying new clothes for a year, or for wondering what happens to the (underpaid) people who make the clothes.

I read an article this year about a group of people who gave up buying any material goods for one year. If they needed something because, for example, something broke, they bartered for a new item. That is much more discipline than I could ever show.

I'll definitely support you if you try to do it! Maybe I'll have to think about joining you...