The problem is: in the case of New York City, "this particular" and "that particular" just happen to be egregious violations of God-given rights enshrined in the U.S. Constitution.
If results are all that matter, then let's just screw elections entirely and install a dictator.
You could be even more critical of Abraham Lincoln in this regard. He was a Republican as well. It didn't hurt his legacy. In the end, Lincoln was judged by the outcome, as all politicians are judged. So will Giuliani.