But that same Torah commands us not to go to secular court. The third Rashi in Parshas Mispatim clearly equates going to secular court with worshiping idols!
The fact that the Satmar Rebbe brothers are in secular court, is not a surprise, because the minhag in Satmar is only to observe minhagim, the Torah is not in the equation.
The surprise is , that Yeshiva Chaim Berlin went to secular court, and that is a big chiddush!
But both the Litvaks and the Chassidim will prohibit anyone going to secular court when one of theirs, sexually abuses or outright rapes innocent children!
Why is it "mesira" when a dangerous rapist attacks girls or boys, but not "mesira" when its dealing with $$$$$$$$$$?