I'm a GenX Dad w/ 3 millennial kids ALL of whom are thrilled with Biden's candidacy. Anecdotally...

[Hortensis]

68. Well, yes, but earned. I don't use it because,

although most of Sanders' followers of this type are male, the sort of people who could and would believe and spread vicious lies as SOP and yell to "lock her up" are both male and female.

Not all Sanders' supporters are this type, by any means. Just some, but they're major troublemakers and tend to dominate groups they're a significant part of.

Maybe read about populism and the people it draws. Those who combine both economic progressivism and social conservatism are so ubiquitous in populist movements that they are practically defining. And as we know, social conservatives can have a tendency to get downright nasty toward people they don't like and many can tend not to like a lot of people.

Maybe think what that means for behaviors and why Sanders' delegates at the Democratic National Convention acted just like Trump's. "Lock her up!" Remember?

Maybe check this out for a start because "Berniebros" reminded me of it:

Scientific American: The Personality Trait That Is Ripping America (and the World) Apart: People who are antagonistic resonate more with populist messages

There are many divides in the world right now. But there's one divide, deeply embedded into the core of human nature, that helps explain many other divides. What I'm referring to is a source of human personality variation that is built right into our DNA: antagonism. By really zooming in on this trait, and understanding how antagonism interacts with environmental conditioning and messaging, we can gain a greater understanding of one of the most prominent divides in the world today: populism.

First, let's dive in to the latest science of antagonism.

Agreeableness (the opposite pole of antagonism) consists of two main aspects: politeness and compassion. ... On the other end of the pole, people with low levels of politeness (antagonistic people) tend to score high on measures of aggression, whereas those with low levels of compassion tend to score poorly on measures of empathy. ...

https://blogs.scientificamerican.com/beautiful-minds/the-personality-trait-that-is-ripping-america-and-the-world-apart/

See where this is going and how it's going to explain "BernieBro," that is, populist, behaviors?

Btw, this below is fun and worth noting also. Everyone will recognize America's current two top populist leaders, "outsider-elites" Sanders and Trump, in this striking observation.

Interestingly enough, populist supporters don't actually want to be led by the "common person"; rather, they want their own values and wishes to be enacted by a "great" leader. Mudde has found that most populist leaders are actually "outsider-elites"; they are highly connected to the elites, but they are not part of the elites. Supporters of populism simply don't want to be governed by an "alien" elite, whose policies do not directly satisfy their own wishes and concerns.