We know pretty well what's happening on Earth and we have for decades. It's not like we just realised 5 years ago that we have a problem. We have not done anything (and we still aren't), but we knew, that's for sure.
> I'm not confident that our place is in the stars, but it would be narrow-minded not to give living out there a go.
In terms of survival as a species, anything that's not about solving our biodiversity and climate problems is a loss of time. I'm fine if some people work on it (just like it's good to have people working in art), but a lot of those researchers and engineers working on space exploration may actually be more useful to the species if they worked on the actual problems we have.