TL;DR: In a plot to destabilize the EU, Putin and Lukashenko personally and directly caused masses of people to migrate from the Middle East, Asia, and Africa, so Poland won't observe the legal right of asylum anymore. They also decriminalised shooting migrants "in self defence".
(Edit) This is from the new, supposedly less fascist Polish govt lol
That's how these things have been done in the past. Even if there isn't some master plan beforehand, whatever works for one reactionary will inspire another.