The challenges of democracy and ways​

1) Overcoming polarization

2) Immigration and the challenge of sustaining multiethnic democracies

3) Globalization, economic inequality, and democratic discontent

4) The causes of populism and its consequences for democracy

5) Debates over institutional solutions

Explanation:

so they can differentiate themselves from others as they saw themselves as the superior race. the star was basically a symbol that meant you are a less of a person than i am because of my race. the star was also degrading for those who had to wear it because they were aware of this and the nazis used the notion to make them feel less like a person.