[zibzab]

Short answer: because they understand that with the current mess, they could very well be next.

Excluding Poland, Hungary and Bulgaria, I don't think for the rest it has _that_ much to do with Ukrainias being European and Christians.

[firebaze]

I don't think this is a reason at all. People are mostly acting out of emotion, and it's easier to relate to culturally close people, even more so if most of the refugees are children or females.

Not sure if you experienced both crises first hand, but I did/do.