The thrust of your argument appears to be that: 1) Trolley problems are idealised 2) Idealisation can be a dark art rhetorical technique in discussion of the real world. 3) Boo trolley problems!

This is strange, this is the second comment that summarized an argument that I'm not actually making, and then argues against the made up summary.

My argument isn't against idealization - which would be an argument against any sort of generalized hypothetical and against the majority of fiction ever made.

No, my argument is that trolley problems do not map to reality very well, and thus, time spent on them is potentially conducive to sloppy thinking. The four problems I listed were perfect foresight, ignoring secondary effects, ignoring human nature, and constraining decisions to two options - these all lead to a lower quality of thinking than a better constructed question would.

There's a host of real world, realistic dilemmas you could use in place of a (flawed) trolley problem. Layoffs/redundancies to try to make a company more profitable or keep the ship running as is (like Jack Welch at GE), military problems like fighting a retreating defensive action, policing problems like profiling, what burden of proof in a courtroom, a doctor getting asked for performance enhancing drugs with potentially fatal consequences... there's plenty of real world, reality-based situations to use for dilemmas, and we would be better off for using them.