The proposal by Stephen Douglas on the issue of slavery in the Kansas and Nebraska territories was that

The railroad

Explanation:

idk i got it right you're welcome tho :)

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.