This whole mindset of "muslim refugees means more terrorism" is erroneous.
Well, possibly you are right but that is not academia where you debate all pro and contra. That is politicks, social issues and self-proclaimed tribunes plus few nutter and whatnot in action.
Generally it is a poplar backlash against European governments that with the one hand meddle in the middle east affairs and with the other take in all those people with a completely different culture, background, religion and mentality regardless of the consequences.
My personal stance on all that is simple - terrorist is just a product of a pressure by the western progressives (Godless) who are mostly in charge in those countries on a tribal Muslim culture.
I personally don't care about that Muslim equals terrorists slogan but I think that is a good slogan to use in order to stop influx of Muslim people into Europe and specifically into Poland. Poland is a Christian country and should remain so.