Translate the following English sentence to French:
"But we must understand that if her proposals were carried out, they would damage competitiveness and productivity, they would deter investment, they would hurt prosperity and, above all, they would increase unemployment in Europe."
Mais nous devons comprendre que, si ses propositions devaient être mises en uvre, elles nuiraient à la compétitivité et à la productivité, elles décourageraient les investissements , elles léseraient la prospérité, et surtout, elles provoqueraient l'augmentation du chômage en Europe.