How did the introduction of european ways affect african societies

European customs replaced native African customs.

Explanation:

The Europeans were obviously the oppressive people back then. They were the colonizes and, as it often goes when you have a dominant culture, elements of the local culture were either forbidden, set aside, or just avoided in order to the Europeans to feel more accommodated in the colonies. It was not uncommon for Europeans to think that other cultures were uncivilized or barbaric when most of the times, they were just different. Sometimes, superior to European culture in some aspects, even.

b or c ( this is because my answer is short so just ignore it)

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.