Isn't this just a case of euphemism treadmill? The Culture and Star Trek are clearly utopian visions of the future and also fits this protoian definition 100%. There is no difference, except that some people think, incorrectly, that you can jump from the current society (imo a utopia itself by any time traveller from 150 years ago) to a new ideal world without passing the intermediate steps. I think of these people as the creationists of social evolution, just totally wrong on basic facts and intellectually dishonest.

Who in the hell would think 50x annual wage house prices is any type of utopia.