Re: The difference is...
"You do realise that the US government supported (at least in part) and instigated the creation of most of those regimes don't you?"
Most large powers have either created or supported various regimes. The british empire, the USSR, china, they've all done it. The US is not unique in this respect.
You see the choice you have is
A) Upholding or supporting a goverment that can create some sort of order even if the guy who does it is a bastard.
B) Just leave alone and watch the chaos ensue. Which is whats happening right now across the middle east.
I'm not supporting US policy, god knows they've made a fuckup of Iraq and their continued support for the Saudis despite everything they've done makes me sick - but lets not pretend that politics in these sorts of areas is a simple black and white affair. Jackass Straw found that out the hard way and his "ethical" foreign policy disappeared almost as quick as you can write PDQ.