Depends on where you are. From my experience there's lots of hostility but few won't say it openly. Many are also pretty hostile even towards people from their place of origin regarding to religion or ethnic origin.
I have had contact over the years due to work and education(as a tutor) and you get to hear a lot of opinions that are not "flattering" so to speak.
I used to be a glowing anti nationalist but over the years I've become aware that the immigration in large was more of a suicide move on the west's part.
I'm in finland and much over 90% of the imigrants live in the south in the capital area. Once I remember when I came from the army to the railway station in Helsinki, some buck fifty weighing arab said to his friend when I passed them "tssssh shoot them in the head man". I've also got some mean stares and eye balling, probably because I also gave them mean stares, but sometimes I have hostile eyeballing with white's, you just don't get along with some people. Untill you nod your head and say "sup man", and usually that defuses the situation all together in my experience.
Oh yeah, once some somali was drunk and probably cranked up, and he was harrasing few people on the bus stop where I waited for a bus, and he took a ciggarette out of my mouth like it's nothing. I was too pussy to retaliate, I was 20 and went to solarium twice a day and lived in the gym, had no social life back in those days so I froze. Would be differend now days.