So I guess Ronald Reagan was about the silliest President you ever saw.
No, he wasn't. Because he hadn't just invaded Iraq to install a Shia-dominated government. For your idea to begin to be feasible we would have reverse course 180 degrees and install a new Sunni strongman in Iraq. Or should we just break Saddam out of his cell and put him back in his palace?
We are where we are. You're right that Iran is in a stronger position now than it was before we invaded Iraq. But let's talk about realistic moves to deal with them, not told-you-so, woulda-coulda-shoulda fantasies.