I dunno..... my sensei used to show us videos of this show known as Cool Japan, where they take foreigners from different countries, such as USA, Germany, France, Thailand, Sweden and bring them around different parts of Japan, and they talk about how different the Japanese culture is from their own native countries. They seem to have so much fun, and it's hard to imagine them being ostrasized by the Japanese.

Wait, I just managed to find an episode on youtube. Check it out here. Search for Cool Japan if you're interested in other episodes.