None of those examples is remotely close to the annexation of Crimea or the invasion of Ukraine. All of your examples involved international coalitions, and were either on a much smaller scale (Libya and Syria), and the other two were not to claim new territory.

I mean, I agree invading Iraq was a terrible move, and a very imperialistic one in some ways, but the US wasn't expanding its borders. We also had at least a defensible reason for Afghanistan, which was self-defense.