From my point of view I would agree that Libya was better off with Gaddafi. Gaddafi was negotiating a surrender with free elections but Hillary Clinton blocked it because she wanted him dead and needed to boost her foreign policy resume. She then bragged about it afterwards. Libya is unlikely to recover in a meaningful way for the duration of the modern islamic uprising - which will be a very long time.
Syria was, is, going to be a massacre either way. We are much much better off to have Assad winning. Obama's support of Al Nusra / ISIS in their fight against Syria / Russia resulted in much greater destruction, suffering and loss of life that what would have happened without Obamas help.
Why the US is pushing so hard for an economic war / proxy war / shooting war with Russia is pretty complex and out of scope for this response. But as Noam Chomsky would say; modern states maintain power either by force or by propaganda. As a democracy we get the propaganda.
To round it out; Iraq was created by the British with the intent of making an easy to control failed state. Hence why their borders make no sense. The British have a long tradition of this and are very good at it. The fact that Iraq failed and keeps failing should be of no surprise to anyone.