Gaikokujin wa ii chryo desu ka. Watashi wa Amerika kara desu, to watashi wa Nihon sumikomitaidesu. -Gaikokujin wa ii chryo desu ka. => I don't understand "chryo". -Watashi wa Amerika kara desu, => this sentence must be translated from "I am from America" however, this grammar is still "English grammar". Japanese people dont use "from" to show where you are from. Japanese tend to say "watashi wa(ha) America shussin desu". "Shussin" means "where you are from". - to watashi wa Nihon sumikomitaidesu. => Sumikomi and live are meaning differently. Sumikomi could be used when you are more particulary meaning that living at "work space" : you live at the place where you work. If you are mentioning to live in Japan whether short or long term, you would use "taizai" or "sumu" for living. Gaikokujin wa ii "chryo" desu ka. Watashi wa Amerika "shussin" desu, "Ato" watashi wa Nihon ni "taizai shitai" / "sumi tai" desu.

Mostly yes, but you will encounter from time to time ridiculous examples of racism directed towards yourself and other non-Japanese, mostly borne out of ignorance, which do become tiresome over time.