Ok so what is the outreach to Jews from chabad about if not to make them more observant as Jews? As I said, few respond positively to the call from chabad so what does that mean?
There are about 5 mitzvoth from the written Torah that require Jews to a) teach Torah to children, b) help correct fellow Jews who have made mistakes or don't keep the Torah, and c) try to return those Jews who have been kidnapped from among the Jewish people. (Whether literally or figuratively). As as I mentioned before, any Jew can opt out of the Jewish Torah based nation. Whether literally or figuratively, but irregardless there are mitzvoth to try to help those Jews who are outside of the Torah either by choice or because they were forced out by parents or other non-Torah based factors.
Chabad is one of SEVERAL Jewish organizations who seek to do these 5 mitzvoth that Hashem gave to the Torah based Jewish nation. I.e. they are not missionizing to a Jew to change into something not Jewish. They are instead trying to convince any Jew that is not keeping Torah to return to the path of their Jewish ancestors. If someone doesn't want to return to the path of their ancestors in the current situation, it is the hope of every Torah based Jew that they will do it at some point in the future.
You keep talking as if the Sanhedrin is still in effect for Jews (ALL Jews). And non Jews who claim to be noahides? The Sanhedrin for them?Sacrifices? Law? Penalty?
The halakhic rulings of the Sanhedrins from Mosheh to the last one over 1900 years ago still stand for all Torah based Jews, when they can be accomplished. BTW there were numerous smaller courts bellow the Sanhedrin in the land of Israel. A Jew can reject the Sanhedrin, just like they reject Hashem. The result is still the same since Hashem gave the mitzvoth to create a Sanhedrin in the land of Israel. The rulings of the Sanhedrin are applicable to Jews and Geir Toshavs living in the land of Israel. The Sanhedrin does not make rulings for Noachides living outside of the land of Israel. The Noachides living outside of the land of Israel are supposed to manage their own judicial systems based on the 7 mitzvoth.
The best way of understanding what a Sanhedrin is, it is like a Supreme Court for the Torah. Similar to have you have a Supreme Court in America.
I GUESS what you are saying is that Noah and his family alone followed the laws before God gave the very intricate laws, hundreds of them, to Israel. And everyone outside the ark drowned by God's decree. Eight persons in the ark survived. The rest of the world's population was destroyed at God's decree.
I am saying that all humans are created with the baseline being the 6 mitzvoth. That started from Adam and Hawah. The 7th mitzvah was received by "humanity" during the time that Noach and his family left the ark. Post Mount Sinai, non-Jews can know about the the 7 mitzvoth by way of the Torah that was received from Mount Sinai.
During the time, before the flood outside of Noach and his family humanity had gotten to a point where they were breaking most if not all of the 7 mitzvoth. They were doing so to the point that they were influincing animals and plants. According to Jewish sources Noach, while building the ark, spent about 120 years trying to inform people about the mistakes they were making. They didn't listen until the boat had taken off, so to speak.