Wait a second; you're afraid of things that can't actually harm you? Things that are powerless to change your lifestyle, despite how strongly they might want to?

I am not afraid of them, I was never at the protests, I don't even agree with them. I am just trying to play devil's advocate and show everyone here the possible reasons behind the protests. The fact that as a neutral observer I am still getting downvoted says a lot about this place.

And they are not powerless. They have a voice, a voice loud enough to scare the Australian public and a voice loud enough to push Islamic radicalism. They are powerless at the moment, but those protesters are afraid that their power grows, and that they start getting serious consideration by the people at power.

but much less violence occurs here, when compared to other places, so there's nothing to really worry about when it comes to cultural differences.

That is at the moment. And that is one of the things those protesters want to keep. The logic behind that is, if a person comes from a violent environment into a non-violent one, refuses to assimilate, rejects all codes and values, and if there is no resistance to them, then how long before the non-violent environment becomes violent?

He was from Sudan, and was very loud, and happy, and he even danced with me.

I meant "loud" as in attention grabbing. It was a metaphor. When someone's actions get a lot of publicity and attention, they are said to be very "loud". Not physically loud, as in measured by Decibels, but their ideology reaches a lot of minds, and their actions get a lot of exposure.
And look, you don't have to tell me a story about how this one time you met a Muslim and it was great. I have nothing against them. I have grown up in a country where Islam is not foreign. I have Muslim blood in me. I am just trying to look at this objectively.

Maybe we live in different Australias?

Just because you don't take the situation as a threat, it would be foolish to say that no one else does. If you live in an Australia where everyone is a clone of you, then yes, we do live in different places. Because when I look online, I can see a worried group of people. Just because you don't agree with them does not mean they don't exist.