So I don’t necessarily disagree with your chart, but it’s neither statistically relevant nor comprehensive enough to draw any kind of firm conclusion. It’s really just a grossly oversimplified snapshot that includes people from all over the country, and it doesn’t correct for any other confounding variables. The source I linked in my first comment is much more comprehensive.
Progressive policies are broadly popular. Running on things that are popular tend to get you more votes. People like it when you do stuff for them.
Yes, I get that from an intuitive sense and based on scattershot polling. It’s a great sound byte, but it’s just a sound byte. You’ve not provided evidence of any of those propositions, and per my original response to you, the party is looking for electoral evidence, not intuitive suppositions.
The only evidence I’ve seen to the contrary is a NYT opinion piece that cites centrist think tanks and random people’s opinions. I didn’t see anything in there that looked reliable or compelling.
No offense, but the only “evidence” you’ve provided to support your assertion is a jpeg with 16 names on it, so I find your retort conveniently dismissive. They’re not “random people”, some of them are academics, and many of them are actual progressives. But fine, if you prefer that I be held to a higher evidentiary standard than you are, here’s what I can cobble together:
And this source goes into a great amount of detail to address the “progressive paradox” that you’re highlighting, whereby progressive policies are ostensibly popular but progressive politicians less so. It suggests that how you frame progressive policies matters a lot to whether or not it’ll reach a receptive audience.
So yes, based on the evidence I can find the popularity of progressive policies does not translate into progressive victories. The Party is interested in electoral success, and if progressive politicians repeatedly fail to mobilize enough turnout to win elections except in the most ideologically pure districts, the Party is going to consistently hedge toward moderation on a national stage.