I do not find this to be an insightful take.
Perhaps YOU don't, but if someone has never considered this idea, then it IS insightful, even if they don't like it. But that doesn't make it wrong, just unsavory. That's the way MAGA thinks: I don't like it, therefore it's wrong.
You speak as if the Democrats are acting in good faith
Not at all. I don't think either party exists in good faith. In fact, I think the point of political parties is to take "good faith" out of the equation, and make decisions based on cold political calculations, and money, of course. You can't allow nebulous concepts like good faith, morals, fairness, truth, etc. muddy the waters. Let's just boil it down to inhuman Math.
I'm a lifelong Independent, since I first registered to vote 50 years ago this year. I declined to declare a party then, and I haven't since, with the only exception being in 2016, when I switched my registration so I could vote for Bernie in the primary, and then changed my registration right back.
I was one of you people, angry that Bernie never got a fair shot, but then I started thinking about it, and realized that he suffered the biggest problem with a two party system - even though the Independents are a larger share than either the Dems or the MAGAs, they don't have ANY power in a 2 party system, because the two parties make sure to ice out any third party, as they should. Nominating a non-party member is a huge betrayal to party members who would have liked to have that nomination. Besides, the president is essentially the leader of the party. A party can't have a leader that isn't a member of their party, and has an agenda that is at odds with the party's agenda. Otherwise, why have parties at all?
Frankly, that's what happened to the Republicans. They allowed a really bad candidate to hijack their party, simply because he had popularity, and they were so desperate and pusillanimous, they made a deal with the Devil. I'm not saying that Bernie would have been as bad as Trump, but it shows how allowing an outsider to lead your party, can end in disaster. The Republicans let in the disease, while the Dems vaxxed themselves against the threat, and Bernie got caught in it.
Running as an Independent is a complex and dangerous calculation, and looking back, I wish he had. In a 3 way race between Bernie, Hillary, and Trump, Bernie might actually have won it, especially since a significant chunk of Trump's support were originally Bernie supporters who refused to vote for Hillary after the DNC edged him out. If he had gone Independent, he might have beaten Trump. That's on Bernie.