Translate the following English sentence to French:
"Moreover, it would be better to improve the host structures for refugees and asylum seekers, who are currently treated as if they were criminals wishing to take advantage of the system."
Par ailleurs, mieux vaut améliorer les structures d' accueil pour les réfugiés et les demandeurs d' asile, aujourd' hui traités comme délinquants qui veulent abuser de la procédure.