Satmar Rebbe says voting in Israeli elections forbidden according to Torah but taking your brother to gentile court is ok!

The Torah explicitly prohibits a Jew to take another Jew to a gentile court in Parshas Mishpatim; no where in the Torah says that it is prohibited to vote in the Israeli elections, yet here we have a leader of thousands of Jews mis-leading his naive flock.. The Rebbe have been in the gentile courts for years fighting about millions of dollars of valuable real estate...