It works quite well in China, assuming of course you are not so unlucky as to want to protest on Tienanmen Square. Or have useful organs someone higher up might want to harvest. Or are an Uygur. Or a Tibetan. Or live in a place downstream of a large dam. Or want to express an opinion.
Oh, and you know how Nazi Germany was the first time that Nazism was tried as well? It also succeeded in some ways, and failed in others. So I guess we should excuse that as well, then?