The idea that progressives are racking up Ls requires taking a very shortsighted view of American politics. The major electoral losses of Democrats in the House of Representatives under Clinton, Obama and presumably Biden have nothing to do with a progressive agenda. The only way in which the progressive agenda can be judged is based on the traction it has been since 2016, which is basically when it became cool to be a progressive again. Since that point, they have their highest level of representation in Congress in decades and pushed the Democratic Party to embrace a BBB plan. Sanders was in charge of writing their economic agenda. They’re also winning local races all over the country. This current MAGA Republican moment is decades in the making. There’s no reason to expect the progressive movement to takeover in one night. The Third Way Dems spent decades on the outskirts before they got Clinton over the finish line. Your argument for centrists is basically that they control all the levers so you would rather deal with them than the people trying to get it from them and move the country forward. In other words, you’d rather deal with the same people who have had power for your entire life and have done little to nothing for people that look like us. This seems like an emotional reaction and anger at progressives for not winning than in believing in the efficacy of centrism. Every major Democratic victory that they current hold and use to consolidate power was conceived during the party’s progressive era: unions, social security, Medicare and Medicare, civil rights, EPA powers. There isn’t a single thing that Democrats are currently holding on to besides Obamacare that wasn’t a progressive idea or invention.Centrists are stopping the country from being overrun by lunatic traditionalist right wingers, if there was a persuasive and influential alternative on the left (via progressivism) or the right ( via a silicon valley like libertarianism) I would be embrace the undermining of centrism.
But, the issue progressives in this thread seemingly prefer to avoid is that they are not good at being persuasive to the average American voter. And that leads people like myself to rather deal with the centrists than progressives who too often care more about being "right" than being persuasive.
However, even if the fickle counterargument is made that centrism has failed to inspire and thus the lack of inspratio has lead to GOP gains, progressives still have to contend with the fact that they consistently get beaten by the centrists. Thus, if you consistently racking up L's to the vanilla ass politicians that embody the centrist left, maybe it would be beneficial to acknowledge and figure out why the progressive message doesn't seem to scale.
Sadly I expect the same set of excuses and rationalizations from progressives on this site about why they struggle to overcome such a mediocore set of messaging-- corporate media, Americans being dumb, and the lack of money--and get aggy when you make it clear it doesn't make sense to bet on them when time, resources, energy are limited and it's an accepted premise that the political game is comes with considerable constraints.
And so I'd rather deal with the group that operated within those constraints byway of tradeoffs versus progessivds who think moral grandstanding serving as the foundation of their strategy is likely to move the needle despite consistent evidence that doesn't work.