utopianism
n. 空想的社会改良方案;乌托邦思想
例句
Utopianism: This shit does not stink.
乌托邦主义:此大粪不臭。
This utopianism is almost nowhere to be found today.
这种乌托邦式的理想主义如今已无处可寻了。
This can all sound a little like, well, '60s-style utopianism.
这听起来可能会有点像六十年代式的乌托邦。