The flip side is that citizens are free to form vigilante gangs, unrestrained by government and PC considerations. Mosques now are protected by the government. Hurt enough people's families and that protection will fade. It will make for a nightmarish, crime-ridden society, but eventually numbers will prevail.
The best thing to do would be to get our governments to protect our modern states, since the modern state, in general, functions fairly well as a space for personal liberties. A violent, anarchistic society means that we will spend all of our time defending ourselves, which has been the situation at other times in the past and has never lead to prosperous or creative societies.
I hope our states will wake up to the fact that Islam is, in many ways, a worse threat than Communism. The latter was vicious and dangerous but had at least a theoretically rationally basis (although Communism is really just an act of faith, deep down inside), while Islam has many more adherents and has no rational pretense whatsoever.
It feels like the mood here is starting to change some. Calif talking about a fence and Houston cops being told to enforce immigration laws? Are pigs flying?