Not all atheists believe in the premise of the OP that we will make utopia happen through socialist intervention.
You can be an atheist and hold to conservative values, a true atheist does not believe in the religion of the woke and their gods, because it's just another religion.
Most people seek group acceptance, clearly too many good people apparently believe that going along with the mob is far better than resisting.
A true atheist has hope that we will better the world through the open and uncensored dissemination of ideas in the public sphere. Sadly, it seems we are temporarily reverting in that course around the world, the EU has become a totalitarian socialist set of countries where free speech is suppressed (Norway just introduced legislation where you can be jailed for up to 1 year simply for reading portions of Leviticus privately in your home) and the US is following them blindly while nobody has the balls to resist China where the unadulterated results of left-wing brutality from Lenin, Stalin, Hitler, Pol Pot never really went away, moreover they are still common and increasing.
But we have hope where the Democrats are now scared, there is a significant amount of people still behind anti-communist values. We will hopefully still have elections in 2 years, which will remove the remainder of the Democrat majority from the House. We will hopefully still have elections in 4 years, which will swing back hard against the left wing. The vote was significantly suppressed over the last few months, as the old socialist media dies and new replacement media springs up (ranging from Vox on the left to BlazeTV on the right), people will hopefully get a more nuanced view of the affairs.
That's my hope as an atheist, that things will change for the better because people know in the depths of their hearts that Biden and co and the policies they will enact are wrong for humanity. I hope people read up on their history and see that socialism (from National Socialism in Germany to Communism in the USSR, Asia and South America to Capitalist Socialism in China) killed more people (~100M people directly through genocide and ~1B indirectly through avoidable/ideological famines and war) in the 20th century.
https://en.wikipedia.org/wiki/Mass_killings_under_communist_regimes