Why caring whom a Goyah marries? Everyone is a human being, and can marry anyother human being (providing they are from different sex, and there is no incest). That points about bestiallity don't help the Jewish cause!!!! If they choose someone from a different ethnical group or religion, they may have a problem, but it's their choise!
And a Jewess can ONLY marry a Jew!!!!! Intermarriage is simply sexual immorality, since it's sex without marriage. No marriage is Hallachically posible between Jews and the (other) Nations.