They will regret it, but by that time it will be too late.
For many of these countries it’s already too late. Poland, Hungary and a few others can still save themselves if they hang tough. I see a war between those who let the muzzies overun them and those that didn’t coming
Maybe this time, we will be fighting the Europeans, instead of saving them.
I was in Germany for 4 years. It’s hard to put your finger on it, but I thought we had little in common with the Europeans. I still think that way.
But once the Muslims dominate the countries other than Poland, they will probably use the national resources to invade and dominate Poland. Poland is a flat land country that has with little exception, been part of a larger empire, whether part of the Soviet Union, Germany, etc.