That is, at least, a conspiracy. Not one that stands up to scrutiny though. Shadow Inc did screw up. Unfortunately, if you look at state level things in many, many prior elections, that’s not uncommon. State level voting systems are tacked together, poorly funded crapshoots.

And your claims about Obama doesn’t have anything to do with the voters. If the people who supported those candidates supported Bernie as a replacement, then that’s how they would have voted. But they didn’t. He in fact lost worse than in the previous election.

So your argument is “all state level elections are fucked and Iowa isn’t special”. That’s actually a reasonable counter argument! Maybe all states look shady and corrupt and broken whenever anyone looks at them as closely as people looked at Iowa after the caucus imploded. If that’s the case, though, then that’s just a further argument for not trusting the elections!

And to clarify, I wasn’t claiming Obama playing kingmaker was a conspiracy (although it was in the literal sense of the word i.e. multiple politicians conspiring together to make Biden the nominee by endorsing him). That’s actually just normal party politics. It just shows that there’s actually no hope for an outsider to win a party nomination, which is to be expected.