That is total drivel. Completely.
I am a socialist in my politics - I am strongly left-wing. (That's
completely different from "communist", for those Americans who don't
understand politics - more like the social democracies of northern
Europe, though I am quite left-wing even by Norwegian standards.)
That is /completely/ independent from being a social person. I'm not
very social, and never have been.
Political socialism is about wanting your country to be better for
people as a whole, rather than for individuals - it's about wanting a
state that provides good schools and health care for everyone regardless
of their economic state, at the expense of less choice for those with
more money. It's about wanting a flatter society with fewer differences
between the haves and the have-nots.
That has no relation whatsoever to how personally social a person might be.
It is not more "tribal" - it is aiming for a wider society, which would
be the opposite of the closed, territorial and tribal view from the
political right. It is not "unhappy" in any sense - nor does it even
make sense to talk about the "traditional norms of human behaviour".
(Although you could say that anyone whose personal politics differs
significantly from the society around them is likely to be less happy -
whether the difference is to the left or the right.)
And no, it is not remotely "more afraid". The more right-wing and
capitalist a society is, the more afraid people are. Those with lots of
money are afraid others will take it from them - criminals, the state,
or other people. Those with little money are afraid they are one step
away from having nothing - in the USA, losing your job can easily mean
losing your house and the whole family losing access to health care. In
a more socialist country you have a more even and trusting society, and
are safe and happy both with other people and with the authorities and
state. And you know that if something goes terribly wrong in your life
- such as losing your job or getting seriously ill - you have a safety
net to limit the consequences. That makes you happier, less worried and
less afraid.
>
> Libertarians are more like "OK, I understand the rules of the gain,
> get out of my way and let me play to win."
>
> Being social, tribal, means that one is hypersensitive to group
> behavior and peer pressure. And afraid of rejection by peers. That
> means, in engineering, doing everything by the book and being
> inhibited against presenting radical ideas. I see this all the time.
>
I don't think you /see/ anything except what you choose to look at in
order to bolster your screwed-up views.