Does the Humanist/Rationalist/Secularist/Atheist movement repeat the Utopianism of the old Communist Movement?

I’d also like to add that I have a topic about Humanism in this vary category. It can tell you more about Humanism and the various Manifestos here. It maybe a good place for all your questions instead of this thread which accuses all humanist. I’d prefer adding any needed info about humanism in that thread rather than posting it all over the forum, even though humanism is often shown throughout the forum.