Thinking about this some more, I have a feeling you misinterpreted what “Jewish law doesn’t apply to gentiles” means. If I, a Jew, eat bacon, it’s considered a sin. If a non-Jew eats bacon, it’s not considered a sin. Jewish laws (restrictions, observances, etc) don’t apply to non-Jews. It doesn’t mean that Jews are allowed to treat non-Jews however they want with no repercussions.
Thinking about this some more, I have a feeling you misinterpreted what “Jewish law doesn’t apply to gentiles” means. If I, a Jew, eat bacon, it’s considered a sin. If a non-Jew eats bacon, it’s not considered a sin. Jewish laws (restrictions, observances, etc) don’t apply to non-Jews. It doesn’t mean that Jews are allowed to treat non-Jews however they want with no repercussions.