Comment by esja

You’re right, it’s not obvious. And perhaps to strengthen your point, countries with compulsory voting (e.g. Australia) don’t seem to show any particular skew.

Regarding the original point, Pew published some interesting stats on voter preferences:

https://www.pewresearch.org/politics/2021/11/09/beyond-red-v...

According to this, progressives are a very small slice of the population, and nowhere near a majority even if you include adjacent groups.