The National Review demands Republicans cut ties with Maricopa County sheriff Joe Arpaio. The instigating event is Arpaio's birtherism (it could have as easily been issuing indictments aimed at suppressing opponents, or his propensity towards racial profiling).
So, on the one hand, a belated good-for-you to the National Review. And one could query just how nuts one has to be in order to lose the website that publishes Andrew "Bill Ayers ghost-wrote Obama's book" McCarthy. But the most important thing to remember is that the effect of this column will be approximately nothing. The National Review can stoke the fears of the GOP base, but it can't put out any fires. When it seeks to stand athwart the runaway train of the conservative id and yell "stop", it will be flattened like a pancake -- assuming anyone even notices at all.