Drawing back to the original point, who is building a drone, or anything. There is only one guy I know of (primitive technology on you tube), and the most advanced thing hes made is a hatchet and charcoal.

This is like saying you didn't make homemade bread if you didn't grow the wheat out back. It is a pointless statement countering an assertion no one asserted because the rest of us know that home made bread means from store bought ingredients unless specified otherwise.