Come on, you have to give some credit to diversity and openness, specially culturally. There's a reason why US/Western films, music, art is completely dominating the whole world. Take a look at the pop charts for instance.
It's not because of this:
As world leaders, economically, culturally, militarily, I do think it's our
moral responsibility to make the world a better place. How you go about achieving that can of course be discussed. I'm not a fan of bombs, as they do little damage to destructive ideologies and religions. If anything just strengthens them locally and globally.
I also happen to believe taking in too many people, in some kind of misguided idea of doing good is very bad. Yes, we might be saving lives, but we also drain some of the best and strongest people from parts of the world that really need them. I think we can take some, but it's a question of numbers and control, and how we welcome them. Too often they are stashed in ghettos without any real chance of work and living respectable lives. This is just futile. IMO we should take far fewer, but also work much harder for those who come, to have a real chance of being integrated. Supplying WORK is the keyword here.