You are missing the picture of what people mean when they say Judeo/ Christian values. There are a few mistakes you are making.

1. You are focusing on the differences between Christianity and Judaism, without looking at the bigger picture of the world and society that predated Judaism. Yes their are differences between Judaism and Christianity, but they are a world away from society that predated them, and have influenced civilization so heavily, that you have a hard time picturing a society without them.

2. In Judaism, there is a difference between commandments given to Jews, and Jewish values that are considered fundamental to all of society.

In the Jewish belief, a non-Jew, can be a righteous person even without adhering to all of the commandments. Those additional commandments were not about morality, and where only intended for Jews to adhere to.

The examples you cited, Kosher, Mixed Clothes were never required of society at large. Stoning, is a punishment, not a commandment (not unlike the death penalty), it was only meant to be used during the time of the temple, and even then, very sparingly (based on different interpretations in the Talmud, it averaged either once every 7 years, or once every 70 years).

To summarize, their is a significant difference (at least in Judaism), between the commandments given to the Jewish People, and the moral values of the religion