Me too. I'd add "self-reliant" to that list of adjectives, though.
I know a lot of libs that are *very* intelligent. But - they lack self-reliance, or motivation. It's easier for them to stay in a comfort zone. I have a cousin who is brilliant - he has a double PHD from MIT, and IMHO, could do roughly anything he wants. Sky is the limit. But....he's *VERY* liberal.
He's an academic. Makes a fair wage, but nothing like he'd command in the private sector. Working for himself, or in the private sector would entail RISK, and would force him to leave the comfort zone of people that all think like him.
I often think that "intelligent" liberals are book smart, but not very wise. Which is why many probably believe communism is a good idea. After all, it does sound good on paper. It might work...if we were all robots.