On a global scale, I don't think Islamism is powerful enough to be one of the three most pressing issues facing the world today. Not even close. I also find it to largely be a symptom of other issues—such as military interventionism, deteriorating socioeconomic conditions, and regional destabilization—rather than a stand-alone cause of those issues (although it has contributed to them in some significant ways).
I'm against all forms of theocracy and consider it to be a major problem in many parts of the world, but I think the risk of World War III, the risk of nuclear war, and the climate crisis, for example, are all far bigger problems than theocracy (be it Islamist or otherwise) on a global level at the moment.
I appreciate your thoughtful reply.
Not surprisingly, we'll probably have to agree to disagree on this point. IMO Islamism is far older than the very real issues you just listed.
To take my last post further, I see at least three essential concerns we have to fight if we're to fight overshoot:
1 - We must fight all incursions against free speech
2 - We must fight against magical thinking, and Islamism is arguably the largest purveyor of magical thinking on the planet.
3 - We must fight the oligarchy.
Yes, I agree about the risk of nuclear war, but I think magical thinking (and its various side effects), and the oligarchy are what's most likely to get us into a deadly world war. For example, conflicts with Israel are strongly exacerbated by religious magical thinking, and Israel has to be high on the list of situations that could spark a war.