President Bush The Smarter Has Passed Away

[Angrboda]

Engaging in regime change overtly through the expedient of an unjust war sets you up for the negative consequences that I've already outlined, whereas covert actions are not as likely to do so.   The fact that the U.S. does and has preferred covert attempts at regime change to overt acts of war aimed at regime change undermines your argument because it shows that, for reasons which I've only partially argued, doing so is worse and more harmful to our long term interests than covert action is.

Overt action should be used when it's a soft target, as Iraq and Libya were. 

It being a soft target doesn't eliminate the negatives that I previously outlined, and I think that's a poor rationalization. You're just spinning ad hoc reasons in an attempt to legitimize your views.