Should i be worried about the radicalization of europe?

I was horrified watching the news on the Paris terrorist attacks this evening and even further enraged when I discovered that the attackers could have quite possibly have been "refugee" radicals from the mid. east. This is already the second attack by Islamic radicals this year and one of many on, Canada, France, the United States, and Russia in the past few years. After watching a few documentaries tonight about European immigration it seems as if there is a large influx of Islamic people coming to western countries recently, and populations of Muslims have doubled in the last decade, with native populations growing at a rate of less than 1.0%.

As a child i dreamed of one day traveling to Europe to see the sights, history, the beauties of each nation, but from what I see.... much of the folklore I imagined is deep in the past now. The French and Italian beauties I hoped I would see are now in short supply, while the supply of laddies with Hijabs and beards is at an all time high (and I'm not into that..) the classic painted streets filled with friendly villagers many years in the past look like a clusterf*ck of mess mixed with a hint of BO these days, and i can only imagine things become more disastrous in the future.

I once dreamed about going to Europe until I learned about what it has become, and with all the attacks recently I worry about the growth of Islamic populations in Western countries and if it will not only lead to a minority native population and further violence. Do u Think my points are valid about what is happening to Europe and other Western territories?