I'll restrict my discussion to refugees as I'm not going to pander to your confusion between the refugees and immigrants and as it is very much clear that refugees are the source of your alarm.

Contrast to immigrants, refugees are few in number. There are only so many able to flee the civil war in Syria.

Refugee status is temporary if you can understand that or not. This is one of the ideas that legally differentiate immigrants from refugees. 

Do I think that the numbers of refugees of the Syrian Civil War is more than the West can accommodate?

 No.

The situation is temporary and even if it weren't the needs of these refugees are a drop in the bucket of Western budgets and further is a figure that'll likely be dwarfed by the refugees' economic output in their host countries over the long term.

Sure it poses some social challenges given rampant bigotry in some of those host countries, but that is something we must overcome, not run away from.