Those who want you to doubt that anarchy (self-ownership and individual responsibility) is the best, most moral, and ethical way to live among others are asking you to accept that theft, aggression, superstition, and slavery are better.
If Islam ever does take over America it will be because we allowed a government to be available for them to co-opt.
If you leave a tool lying around, don't be surprised that someone picks it up. Then, don't be surprised if the tool is used as you have already demonstrated,by your past actions, that it can be used.