If Al Gore had been President on September 11, 2001, there would have been no bi-partisan, United We Stand language coming from conservatives. The aggressive, partisan response we have seen to even this failed attack would have almost certainly meant impeachment proceedings against President Gore sometime in late 2001 or early 2002.
A substantial minority of elected officials in the Democratic Party is willing to go along, or at least keep silent on with #3 and #4, either because they believe it or because they don't have core values and think those positions are electoral winners. For the same reasons, a smaller minority of elected officials the Democratic Party would even be willing to go along with #2 and #5.
Although, since these are not the first examples of these outcomes, beliefs or counterfactuals, I guess all of these are actually reminders, not lessons.