Those who harbor extreme anti-Polish sentiment and act on it should be labeled as dangerous terrorists by the United Nations, in the interest of shielding Poland and the Polish people. This is because words are one thing, but combining it with actions such as violence and harassment violate moral and ethical codes of behavior. The UN should do what it can to help the Poles be safe.
I do not believe those who harbor extreme anti-Polish sentiment and act on it should be labeled as dangerous terrorists by the United Nations, even if it would shield Poland and the Polish people. This is bigotry and racism, it is not terrorism. Terrorist and terrorism refers to attacks such as 9/11, public transportation bombs, humans strapped with bombs. We are simply watering down the definition of terrorism by over using the term.
Those that act on a dislike for a nation or nationality are terrorists. Labeling them as such by the UN will not likely do much. The reaction that should be sought after would be prevention. Identification of these individuals is paramount. If they have already committed acts of terrorism, they should suffer the same consequences as someone who said and did these things toward the US or the UK.
While I'm sure the people of Poland and the Polish people might feel otherwise, no. I don't understand people who hold such deep seated resentment toward an entire nationality, I think they're rather disgusting. But simply having an idea or disliking someone, however irrational, is not grounds for being labeled a terrorist.
Having anti-polish sentiment and acting on it doesn't necessarily mean you are a terrorist. It means you are a bigot and willfully ignorant, but it does not mean you are a terrorist. Now, if you act or mastermind violence toward the Polish people that is an entirely different story and is terrorism.