@Brainsucker Your this bro is much more sober than you. This is the real situation you are facing. You want to depend on your govt "educate the mass to be civil", "big picture of harmony", they even remain the violence unaddressed, will they do as your wishes, in your favor? Migrate to the area the majority Indonesian don't hate you, or you migrate to a main area establishing a majority community such as Achinese or Bali Hindu. This is the best way you avoid next roits.
Why is it the best way? When you are majority in an area, the gang mobs have no ability of damaging you, you can finish few gang easily. The dirty politics will lose the gang tool, if they directly deploy army to act, you can escape to neighbor nation via land, while Chinese society is push China govt to meddle in via all methods. China in near future also can orgalize a group to counter this situation, if it's necessary, I think China govt will consider to set up a military base in Cambodia, where it is fuking near to Indonesia.
Once Indoensian break out an violence against Chinese, you let them pay big price; one lession isn't enough, you give them one after another prices, till their gang mob is not afraid to play this dangerous card.