Intervening in Kosovo was motivated by the greater good. Failing to intervene in Bosnia (which Corbyn supported) certainly did not help anyone. Not intervening in Syria (again, Corbyn obviously supports it) has not helped the Syrian people one jot and has only allowed extremism to flourish. The invasion of Afghanistan was indeed motivated by self interest but British troops helped to do a hell of a lot of good there - even more so before we and the US became distracated by Iraq, which was obviously a moral and political catastrophe.
There are so many shades of grey in this area. I appreciate that. I just don't appreciate Corbyn being held up as a prophet for his warnings on Iraq, or the whataboutery so many of his supporters use to defend him.
Yes, its an incredibly complex issue to put it mildly.
I certainly wouldn't be holding up anybody as a prophet for their warnings on Iraq. Ultimately, most of those who opposed the Iraq war didn't do so because they didn't believe Sadaam had chemical weapons. Likewise most of those who did support it didn't do so because they thought he had. As is normal in these matters, both sides were mainly motivated by ideological beliefs and concerns. As we obviously don't have any counter factual, at least with regard to the continuing rise of Islamic extremism, on how things would have went if the war didn't happen, saying one side or the other was right on Iraq can never be definitive. What we can say is that the reason put forward for invasion was proved to be false. But that's not the reason people coming from Corbyn's perspective would have opposed the war in the first place.
Just on whataboutery, I have never understood why this term is brought into debates as to somebody's fitness to be leader of a country. If you are merely condemning somebody's moral compass or the content of their character, for instance, then whataboutery is not a suitable reply. But in many other scenarios, for example if you are talking about somebody's fitness to lead, surely comparisons are appropriate.
With regard to a person's fitness to lead, than surely the actions of other leaders who have been generally accepted as fit to lead should be a better barometer than some subjective metric imposed by one side or the other.