How did Pro-Putin/Isolationists Tulsi Gabbard, Greenwald & Jill Stein Fall From Favor in the Left...

[Hortensis]

10. True. Not all certainly, but many. Progressivism is positive! :)

Positive, progressive action in government requires using "the establishment" to take that action. Factions that insist establishments, party or government, must be replaced before progressivism is possible are deceiving people about their goals and who they are. Whatever that is, it's not positive movement to address the people's issues. They'll be pro-Putin if they think he's helping them against Democrats, as he did in 2016.

Populist movements can espouse any ideology, anything from theocratic to socialist, Progressive to MAGA, etc. and also change with the leader. Ideology is not all that important to followers; acting out their signature antagonism toward "the establishment" is, and again their ideology can embrace Putin if they think he's helping them against Democrats.

I'd add to that list "authoritarian" as well. Since it played such a role in 2016, the existence of LW authoritarianism has been established. At that time it was observed by many (including me as an amateur) but had not scientifically specifically studied and confirmed before.

Authoritarians, right and left wing, have a great deal in common, beyond uber-fealty to their leader and belief that whatever he does is right. They make great attack mobs and would rush to righteously attack the same behaviors in anyone else, without caring in the least about the dissonance.

Of course authoritarians tend to admire Putin: Putin would have locked her up.