I don't think you're going to find many people in Belgium right now who would be okay with admitting 10,000 new Muslim immigrants, and rightfully so

Belgium in itself has a major problem, the brain behind that Paris attack was a 27-year-old Belgian Muslim
Belgian jihadism is an actual thing unfortunately, and many Muslim politicians have been winning their elections and vowing to implement Sharia law

They don't seem to be able to integrate with any other people, because they're so intolerant, so they try to overpopulate and take over
I don't live in Europe but I see people complaining about it all the time and I'm just glad it's yet to become a significant issue here, although it will if we continue being pushovers