It’ll take longer that that and society won’t collapse without us experiencing some very painful death throes first. Gonna be a pretty wild ride. I feel bad for our children and their children most of all.
If covid and Trump have taught me anything it's that the majority of people aren't willing to do a damned thing until they themselves are hurt in some way. Based on this and my experience with peoples' unwillingness to admit they're wrong, I'd say we'll keep going until the majority of people tap-out from the heat.