If you are incapable of identifying some of the insane positions that clearly lost them the 2024 election, I'm afraid you may be in a bubble and no amount of someone explaining it is going to help.
Or, consider that "insane" is a word that's excessive for pretty much every position of every candidate of every party, primarily used to generate immediate emotional responses and shutting down conversation.
There are positions which I think are dumb, or potentially harmful, or counter to what I believe, etc. But there's rarely been a position I consider "insane" (from all parties!).
If you're immediately jumping to calling every position you disagree with "insane", you're just being hyperbolic.
That may be true, but what matters is perception. It doesn't take very much of the perception of insane to push the winner over the edge. Elections have been known to be decided over single issues. To take a position of "I can't possibly see anything wrong with any of our policies" after a resounding defeat is not very self-reflective.
There are positions which I think are dumb, or potentially harmful, or counter to what I believe, etc. But there's rarely been a position I consider "insane" (from all parties!).
If you're immediately jumping to calling every position you disagree with "insane", you're just being hyperbolic.