"Why? Because we are Qatar, because we are Arabs? No, that's not good," he said on RMC Sport.
Asked if he believes racism is behind the city's stance, Al-Khelaifi said: "I think that even legally he cannot say that. It's really serious."
He added: "It hurt me a lot. Not for me because I don't really know who this deputy is. But if I really hear it as a human being, it's not good. We are France, we are in the country of freedom. I think this is really very serious. For the stadium, we make no secret of it, the truth is that we have a new American investor Arctos and one of the conditions he wants is to be the owner of our stadium. Today if we really want to be competitive with other European clubs, we have to have our stadium. For me, the Parc des Princes is the best stadium in the world, there are no questions about that. But our supporters need bigger and closer to the pitch, a bit like in England. When we play, we want to have one of the best stadiums in the world and we want to invest."