How different Paris looks today since the immigration of Africans and Muslims from third world countries

The immigration of people from third world countries into Europe is creating such problems. I was amazed watching this video. I went to Paris in 2010 and it looked nothing like this clip. One thing I remember discussing there was how clean and neat everything was. You would barely ever find one piece of trash lying on the pavement. It was well looked after. Now the streets are covered in litter and it feels completely different