I think the conversation with the second girl was the most important.
Many of us – probably most of us – are a member of one minority or another.
I, as an atheist, am part of a discriminated minority in the United States. However, I have the option to choose whether to allow others to know I am a member of that minority, and thus escape negative interactions with people around me on a daily basis. Laws will continue to affect me, and public policy, and all those other things, but if I want to, I can hide my difference.
People of racial minorities do not have that option. Their skin looks like what it looks like. There are people who will react negatively toward them every day, no matter where they go, simply because of the way they look. There is nowhere a tall black man like the boy in the video can go without finding discrimination behind every other set of eyes.