أَبْغَضُ الْبِلَادِ إِلَى اللَّهِ أَسْوَاقُهَا does not mean that trading is itself forbidden or that every person at a market is blameworthy. It warns about temptations toward deception, unfair dealing, and neglect of remembrance.
Concealing a product's defect, misleading a buyer, or exploiting trust are wrong. Honest trade requires disclosure, truthful descriptions, and fair treatment.
أَسْوَاق is the plural of سُوق, a market. The comparison offers an ethical reminder, not an instruction to abandon lawful livelihood.