How does having a company that contributes effectively zero to your country make that nation better off? As an example look at the similarities of clothes and

How does having a company that contributes effectively zero to your country make that nation better off? As an example look at the similarities of clothes and shoes donations from the west to Africa with opening up to parasitic businesses. All these charity efforts have done is undermine the local clothes and shoes production and market making it impossible for people to build businesses and create jobs. If I open up a new fictitious nation to all trade and allow them all tax write off on investment in other countries then I don't get a prosperous nation. I get a basket case that cant compete with foreign existing industry, can't develop competitive local industry or employment, and likely stuck in debt because tax revenue would be so low.