Translate the following English sentence to French:
"Madam President, it is a fact that over recent years, as immigration has increased, a climate of prejudice has started to creep in, racial violence has become more and more frequent and even political parties have been set up on the basis of racist ideology."
Monsieur le Président, il est indéniable que, ces dernières années, parallèlement à l' augmentation du courant d' immigration, un climat de préjugés a commencé à s' installer et que les cas de violence raciale se sont multipliés, tandis que des partis politiques se créaient sur la base d' une idéologie raciste.