Most people don't have the racist and misogynistic tendencies that Atlas has. Atlas is a bubble not representative of the real electorate.
I would say it is more the opposite. The real electorate is if anything more racist and misogynistic than Atlas. Sure, some segments of the electorate, and in some particular areas, are less so, but that's not the national average when you take into account the redstate hinterlands.
Atlas is overwhelmingly left leaning in comparison to the USA as a whole, and most racism and misogyny is on the right.
A disproportionate share of the most racist and misogynistic posters here also often end up getting banned, which also makes Atlas/talkelections less racist and misogynistic over time.
Although actually, thinking about it a bit more, it is possible that Atlas is less racist but also equally (or more) misogynistic than the country as a whole because Atlas is more male. The electorate is slight majority female, which limits how misogynistic it can be to some extent.