Well, yes it has. Australia, and a person being assaulted, is the data point you were using to say dissent was not allowed. There have been weekly peaceful protests in Sydney, with police keeping it safe. ACAB may be true but there is varying degrees and Australian police are not the same as american. This was likely a case of police violence towards protest, irrespective of ideology.

All those different countries have people, as you say, with differing views. You’re equating the act of government as being their belief and they have all had rallies and protests. Dissent is not banned by any means. The number of people opposed to genocide or aware of the seriousness of genocide is growing. That is changing the politics.

You should be aware that in Sydney, there have also been antisemitic attacks on child care centres, schools, businesses and there have also been false flag terrorist attacks against Jews too. So, the situation in Australia is nowhere near as clear cut as you are presenting.