Ironhead, you make an excellent point! Since Appleseed is an all-volunteer organization, there is no "central office" that deals with such issues. That means that the one who identifies a problem is usually the one who fixes it.
Here are the steps:
1. Identify a list of which goods are at issue.
2. Identify a list of which domestic manufacturers might be able to produce an equivalent product for us.
3. Seek permission to contact those manufacturers on behalf of Appleseed.
(PM me with the first two lists, and I'll gladly help you figure out how to accomplish this step.)
4. Get some advice from other instructors who have prior experience working with vendors.
5. Contact the manufacturers and negotiate a proposal for production of those goods.
6. Get approval for the proposal (see #3).
7. If approved, act as liaison for production and distribution to the Home Range store.
While you do these things, don't lose sight of the Mission. Your first task is still to keep bailing and making progress as an instructor. Your additional work on the store will be much appreciated by the many others who agree with you and would strongly prefer to purchase American-made products!