I explained that these people did not disapprove of him because he was Christian; they disapproved of him because he was a Christian dating a Jew, which is another issue altogether.Traditional Judaism does not permit interfaith marriages.Furthermore, the blessings that we received from G-d by accepting the Torah come with a high price: Jews have a greater responsibility than non-Jews.While non-Jews are only obligated to obey the seven commandments given to Noah, Jews are responsible for fulfilling the 613 mitzvot in the Torah, thus G-d will punish Jews for doing things that would not be a sin for non-Jews.Any non-Jew who follows these laws has a place in the world to come.The Noahic commandments are binding on all people, because all people are descended from Noah and his family.For example, worshipping G-d in the form of a man would constitute idolatry for a Jew; however, according to some sources, the Christian worship of Jesus does not constitute idolatry for non-Jews. The word "goy" means "nation," and refers to the fact that goyim are members of other nations, that is, nations other than the Children of Israel.There is nothing inherently insulting about the word "goy." In fact, the Torah occasionally refers to the Jewish people using the term "goy." Most notably, in Exodus 19:6, G-d says that the Children of Israel will be "a kingdom of priests and a holy nation," that is, a goy kadosh.
This has been the majority rule since the days of the Talmud.
Judaism generally recognizes that Christians and Moslems worship the same G-d that we do and those who follow the tenets of their religions can be considered righteous in the eyes of G-d.
Contrary to popular belief, Judaism does not maintain that Jews are better than other people.
Because Jews have had so many bad experiences with anti-Semitic non-Jews over the centuries, the term "goy" has taken on some negative connotations, but in general the term is no more insulting than the word "gentile." The more insulting terms for non-Jews are shiksa (feminine) and shkutz (masculine).
I gather that these words are derived from the Hebrew root Shin-Qof-Tzadei, meaning loathsome or abomination.