These are people who LEFT your country to live in another. They are citizens of that country now.
They should be expected to act like citizens of that country. If they do not they should be expelled.
If they are so tied to their homeland their great grandparents left then they can go back to it.
Hungarians didn’t leave Hungary. The Soviets stole a part of Hungary and illegally gave it to Ukraine. They aren’t Ukrainians.