Australia is planning new limits on freedom of speech. The government wants to ban "advocating genocide", apparently to be understood in a very loose fashion.

According to the article, what Hizb ut-Tahrir advocates is political change, not genocide. It advocates a lousy and unjust political system that wouldn't respect human rights, but then, so do Republicans (though they don't go quite as far). Freedom of speech includes the right to advocate such political systems.

The group's leader appears to have made anti-semitic statements. Bigotry is expression of an opinion — a despicable opinion, in my view, but that should not make it a crime.