> I am just increasingly pessimistic about our collective desire to do so.

It's not just a lack of desire (apathy). People who want to solve big, collective problems are increasingly up against groups who actively want to not solve the problems and/or make the problems worse. COVID, for example, was so much worse than it had to be, purely from people actively fighting efforts meant to contain it. Efforts to reverse or mitigate Climate Change are routinely and vigorously opposed.