It’s not as simple as reported:
Put another way, this study says that liberals are a coalition of rich wimpy men and strong poor men. Bu contrast, conservatives are a coalition of rich strong men and poor weak men.
The study found that women are different from men: a woman’s upper body strength did not affect her politics.
Partisans would like to think that it is the smart people who support their side. In reality, though, that doesn’t work: both sides have their share of both smart people and dumb people.
Yes, the notion that smart people are naturally “progressive” is just one of their many conceits.
If politics and upper body strength correlated perfectly, I would be a tenured Berkeley professor.