The article does not define radicalization. If kids have the same opinions on social issues like immigration, race, gender, etc. as their grandfathers or great

The article does not define radicalization. If kids have the same opinions on social issues like immigration, race, gender, etc. as their grandfathers or great-grandfathers, is it really radicalization? Or just a political cycle swinging back? The same logic applies across space as well: are you a radical, if your opinion on those same topics is roughly the same as the ~7 billion people in the world who are not yuppies living in western metropolitan areas?