Maybe its because they fear what technology can do to the world. Maybe loosing their job to a machine or worried that a "certain idea would spread over the world and it would have a negative impact on that person and others." Or maybe it's because certain Americans don't believe in innovation or technology and they feared a progression in it. All depends on the American.
Hope this helps.
Answer:
People might be racist because they don’t feel comfortable around another race because they have never talked to someone of that origin so instead of trying to come up with a conversation they find it easier to make fun of them. I think racism is a problem because it doesn’t let people fully speak with one another clearly.
D. During the March on Washington
Answer:
some one who wants to destroy slavery
Explanation: