> Trump's stated goal of regime change in Iran would (likely) have been a positive outcome if it has actually happened

The number of Americans still believing this is baffling and saya everything about their history education.

"The previous 20 times we forced regime change ended up a net negative for the people in those countries, but surely this time it would've been different!".

> previous 20 times we forced regime change ended up a net negative

Plenty of counter-examples, too. WWII. South Korea. Potentially Venezuela, mostly because we constrained our objectives.

I also don’t think it’s fair to constrain OP’s statement to “the people in those countries.” Regional impacts matter, too. An Iran that isn’t funding terrorist proxies everywhere could still be a net positive even if the average Iranian is no better off afterwards. (To be clear, I’m in no way supporting this stupid war.)

> Plenty of counter-examples, too. WWII. South Korea.

To even hint at those being in the same category of "regime change attempt" as Iran (2x), Chile, Iraq, Afghanistan, Guatemala, Congo is really desperate. Come on now. Not comparable and irrelevant.

> the same category of "regime change attempt" as Iran (2x), Chile, Iraq

…why are Japan and Germany not comparable to Iraq? We’re talking methods and outcomes, not motivations. All involved a wholesale invasion, occupation and supervised restructuring followed by disarmament.