Funny... maybe try less sensationalist media? I live in the south of sweden, literally in the region that receives the biggest chunk of these immigrants... and comparing today to say... 10 years ago? No difference in quality of life, none, what so ever.
I mean they literally closed the border just a while back, immigration centers are closing down left and right because there is barely any need for them anymore, and that should tell you just how "many" there actually was.
The reason the welfare of sweden is in such a shitty state has nothing to do with immigration but more to do with the fact that the previous government dismantled large portions of it, and made the rest of it that much more strict, resulting in alot of people who needs aid going unnoticed and ending up deep in debt and/or homeless.
But for the average citizen? Nothing has changed the last 10-15 years, it is just insane fear mongering and the march of right wing extremists that make it seem different.