It's a correlation, it's hard to find somebody with a college degree that will really believe QAnon, "hydroxy" as a treatment for COVID-19, or that the main problem afflicting the world is the prevalence of abortion.
On the other hand, in the US at least, you will also find the least educated groups, racial minorities including some that do not even speak English, voting reliably democrat. Washington D.C, for example, is overwhelmingly Democrat thanks to, among other things, it's black population–they are not composed of PhDs.
You can also find some professions that are mostly Republican.
Extrapolating these results as some kind of law where people who spent some years at a college will vote for Liberals or Progressives is too bold. If you go some years back it wasn't weird to see large cities filled with well educated people voting for Nixon or Reagan.
It's just that the Republican party has adopted these people: