Let's run that by Hamas and their equivalent in Israel. Now, for example. Rules can be imposed by the moral objectivists through the use of political/military power. Might makes right. The moral nihilists, however, can employ the same "anything goes" means. If they do in fact have the power to accomplish this.Your observation is that all rules, of any kind, can be, and often are, enforced by way of power. My counter is that objective morality is the only possibility for resisting the belief that "morality" is, itself, noting BUT a product of raw power.
It's just that some here who champion a God, the God, their God, not only insist their own Kingdom of Ends justifies any and all means, but back that up further by going from door to door in the hope of actually saving souls from Hell itself.
So, while some argue that objective morality is the only possible remedy here, it had damn well better be their own that you embrace.
Or else...