Ok, but just because it isn't the most dangerous thing that could happen doesn't mean you can just ignore it. You shouldn't stop brushing your teeth just because you could be hit by a bus tomorrow.
I by no means think we should ignore the issue. But I disagree with OP that climate change is obviously a massively more important risk than all of the others.
I also think that a stance approaching religious fervor is entirely inappropriate for this sort of policy discussion.
(As a wild guess, I think some combination of #4 and #6 is our biggest risk for extinction over the next 10,000 years.)
